Perforated silicone RFID wristband, 238 x 17 mm, with two groups of air holes, a metal stud and an optional number panel at the tail. From 1 piece.
Perforated Snap RFID Wristband
238 x 17 mm vented strap with a metal stud
The CG-SW-031 is a 17 mm vented strap, 238 mm long, with two groups of small round holes that let air reach the skin and help the band dry after water. A metal stud on the 23 mm end tab presses into the holes of the opposite group, so the ventilation doubles as the size adjustment. A version with a number panel at the tail tip is available for numbered bands. NFC, MIFARE and LF chips sit in the solid center section. Factory pricing is US$0.35 to 0.90 per piece for 100 to 999 pieces, stock colors are ready, and 5,000 bands take approximately 7–10 days.
- Ventilation
Hole Groups - Metal Stud
Closure - NFC, MIFARE
or LF - In Stock
From 1 Piece
Factory-direct pricing · Standard blanks in stock
US$0.35 – 0.90 / pc for 100–999 pcs
1,000+ pcs: project pricing · 5,000+ pcs: volume discount · MOQ 1 piece · Samples in 1–2 days (stock designs) or 5–7 days (custom) · 5,000 silicone wristbands in approximately 7–10 days
- Two groups of air holes, quick to dry
- The holes double as size adjustment
- Optional number panel at the tail tip
- Solid center section for the chip
Kevin Lee, Sales · Phone / WhatsApp +86-17748608696 · Mon–Fri 09:00–21:00 (GMT+8) · Reply within 8 hours
CG-SW-031 at a Glance
| Parameter | CG-SW-031 |
|---|---|
| Model | CG-SW-031 |
| Structure | Perforated strap; metal stud on the end tab |
| Total length | 238 mm |
| Strap width | 17 mm; 23 mm at the end tab |
| Ventilation | Two groups of small round holes, one at each end |
| Number panel | Optional, molded at the tail tip |
| Chip position | Solid center section between the hole groups |
| Material | Silicone, metal stud |
| Chip options | NFC, MIFARE Classic / DESFire or LF; UHF on request |
| Stock colors | Black, white, grey, red, orange, yellow, green, blue, purple and pink in stock; any Pantone color on custom orders |
| Material grade | Food-grade silicone: soft, skin-friendly and hypoallergenic |
| Working temperature | -30 to +100 °C in use; storage -40 to +120 °C |
| Water resistance | Waterproof; the chip is sealed inside the molded silicone, for pools, showers and daily wear |
| Made in | Our own factory in Shenzhen, China, since 2009; wristband lines produce 1,200,000 bands a month |
| Quality check | Every band is read-tested before packing |
| MOQ | 1 piece; factory pricing from 100 pieces |
| Samples | 1–2 days (stock designs) or 5–7 days (custom) |
| Bulk lead time | Approximately 7–10 days for 5,000 silicone wristbands, depending on the production schedule; rush orders available |
Quality Checks and Test Reports
- 100% Read-Tested
- RoHS
- REACH
- FDA / LFGB Food Contact
- California Prop 65
- Waterproof Test
Current copies of these test reports are available from our sales team on request.
Dimensions and Number Panel

The stud end wraps around and the stud presses into whichever hole of the far group gives the right fit, so every perforation is also a size step. Once closed, the tail sits flat against the band without a loose end.
The center section between the two hole groups is solid silicone; the chip is sealed there, at the top of the wrist, and the holes never cut into the coil.
Where the CG-SW-031 Works Best
Water Parks and Pools
The air holes let the strap dry quickly between rides and swims.
Summer Camps
A numbered band for each camper, with doors and the tuck shop on the chip.
Outdoor Fitness Classes
A breathable strap for bootcamps and park sessions in the sun.
Bike and Equipment Rental
The number panel matches each band to the item it rents.
Chip Options for the CG-SW-031
NTAG and MIFARE chips are the usual choice for the CG-SW-031, since pools, camps and rental desks mostly use HF readers, and LF chips suit older locker locks. A UHF inlay can be placed in the center section on request; the 17 mm width keeps its range short, so we test it on your reader first.
| Technology | Chips | Typical use | On the CG-SW-031 |
|---|---|---|---|
| NFC 13.56 MHz | NTAG213, NTAG215, NTAG216; MIFARE Ultralight EV1 | Phone taps, web links, tickets and loyalty | Standard |
| HF secure 13.56 MHz | MIFARE Classic EV1 1K / 4K; MIFARE DESFire EV2 / EV3 | Access control, cashless payment, hotel locks | Available |
| LF 125 kHz | EM4200, TK4100; T5577 rewritable | Door, locker and time-clock readers already in place | Available |
| UHF 860–960 MHz | EPC Gen 2: UCODE, Monza or Higgs | Hands-free gates and timing points | On request |
Logo, Color and Encoding
The number panel can carry a molded or printed sequence that matches the chip UID, which saves time at handover. Logos go on the solid center, colors come from stock or Pantone, and every band passes a reader check before packing.
| Option | What we offer |
|---|---|
| Logo | Debossed, embossed, debossed with color fill, silk-screen printed or laser engraved |
| Colors | Standard colors from stock; any Pantone color, two-color layers and color-fill on custom orders |
| Numbering and codes | Printed or laser serial numbers, names and QR codes, matched to each chip |
| Encoding | UID list, NDEF URL or vCard, MIFARE sector data, EPC; supplied with an Excel or CSV file |
| Packaging | Bulk polybags, individual OPP bags or your own branded retail card |
CG-SW-031 Compared with Similar Models
CG-SW-031 Price and Lead Time
| Quantity | Unit price (USD / pc) |
|---|---|
| 1 pc (custom sample) | From US$50 per order |
| 100 – 999 pcs | US$0.35 – 0.90 |
| 1,000+ pcs | Project pricing on request |
| 5,000+ pcs | Volume discount on request |
MOQ: 1 piece. A CG-SW-031 sample, with or without the number panel, is made from US$50 per order, and free stock samples subject to availability can be sent; contact our sales team. Orders of 100 pcs and up are billed at factory pricing.
Frequently Asked Questions
What size is the CG-SW-031?
It is 238 mm long and 17 mm wide, with a 23 mm end tab that carries the metal stud.
Which chips can the CG-SW-031 hold?
NFC (NTAG213, NTAG215, NTAG216), MIFARE Classic or DESFire, and LF chips as standard. UHF is fitted on request after a read test on your system.
How much does the CG-SW-031 cost?
The CG-SW-031 is US$0.35 to US$0.90 per band for 100 to 999 pieces, depending on the chip, the number panel and the logo.
What is the panel at the end of the strap?
It is an optional number panel at the tail tip. We mold or print a sequence there, usually matched to the chip UID, so each band can be identified at a glance.
Is the CG-SW-031 good for swimming?
Yes. The chip is sealed in silicone and the air holes help the strap dry quickly, which suits pools, water parks and showers.
Do you offer OEM or ODM perforated snap wristbands?
Yes. With OEM, we make the CG-SW-031 in your colors with your logo, numbering, encoding and packaging. ODM options, such as a new hole pattern or a longer strap, need a new mold, quoted per design and confirmed on a signed sample.
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View DetailsOrder CG-SW-031 Vented Wristbands
Send the chip, colors, numbering plan and quantity, and we return a CG-SW-031 quote within 8 hours.

