The anti-slip feature of these silicone rubber rings makes them ideal for sports and outdoor activities. Use them as stopper for loose rings or to secure your pendant during physical activities. The silicone material provides a firm grip, ensuring that your items stay in place even during intense movements. good for athletes, hikers, or anyone with an active lifestyle. Features -Color:Assorted Color -Material:Silicones -Size:2.00X1.70X0.60cm/0.79X0.67X0.24in -Size:1.30X1.30X0.60cm/0.51X0.51X0.24in -Durable material: crafted from durable silicone, this 13 mm antilost ring holder is designed for durability and use -Adjustable design: the multifunctional adjustable shell necklace lanyard allows for easy DIY , providing a secure and comfortable fit for your items -Secure and reliable: the antilost silicone rubber rings ensure that your items stay securely attached, reducing the risk of loss -Bulk pack convenience: this rings is good for those who need multiple ring holders, whether for personal use or for sharing with friends and family -Versatile applications: suitable for holding keys, pens, and other small items, this silicone can be used as a keychain, lanyard, or pendant carrying kit Package list: 50pcs anti-loss silicone ring