Package Includes: You will receive 30 pieces wrist coil keychains,color random;and 30 pcs blue plastic numbered discs,numbers 1 to 30. Material:The coil stretch wristband keychains and number tags are made from high quality plastic material, waterproof, soft and comfortable, sturdy and durable. Size:The spiral wrist is about 5.5cm in outer diameter with 2.5cm metal keyring,the diameter of the number tag is 3.5cm. Elastic and Flexible: Each spring wrist lanyard is stretchable to securely fit around your wrist without breaking or falling out. These key holder keyring can promptly return to their original shape immediately after stretching. Wide Application: These spiral keyrings are a useful accessory for holding keys and ID badges on your wrist while at the gym, pool, sauna, or beach.Can also be widely used in offices, malls, during travel, yoga, workouts, and other indoor or outdoor activities.