Secure Your Child: Dr.meter's Key-Lock Design ensures your child's safety by preventing them from removing the anti lost wristbands without the 2 included keys. Two-Pack for Extra Safety: Our set includes two wristbands with extended cuffs, allowing children the freedom to roam while staying within a safe distance. The blue link extends 8.2 feet and the orange link extends 4.92 feet - perfect for any situation. Comfy and Secure: Our ultra-soft, breathable sponge padding and round-cornered velcro straps provide a comfortable and secure fit, protecting your child from uncomfortable scratching and sweat. Sturdy and Reliable: The thickened steel wire is coated in high-quality PU, making it strong and sturdywhile still recoiling automatically. This is a must-have for your energetic children during outdoor activities. Reflective and Flexible: The built-in reflective tape keeps your child visible in low light situations, and the 360-degree swivel clip allows free and flexible movement so your kids can stay safe without feeling restricted.