These silicon fastener rings adopt a non-slip design, which can be well inserted into the watch strap and will not easily fall off, offering protection to your device. Watch band loop for watch strap (Watch or Wristband is NOT included), please carefully confirm the size before ordering Made of silicone material, lightweight, and durable for long time use.Which are soft and tasteless, comfortable and abrasion resistance, does not deform or fade easily.