Secure Lock Design: Secure when you need it to be but opens with the key in a flash. Use the two included keys to lock and unlock the wrist link at your convenience. Kids can't pull it off or wriggle out of it. Sturdy Extended Cord: Rest easy knowing this cord will never break. Coated in abrasive-resistant PU, the thick, extendable wire stretches up to 8.2 feet, which gives kids just enough freedom for energetic bursts and exploration. Breathable Wristband: Prevent uncomfortable chafing and sweating with the super-soft and comfy breathable sponge padding on the wristband, even after hours of wearing. Safety Reflective Tape: To add to the safety of the wrist link, it also features reflective tape so that you can see your kids at night, whether it be the amusement park, crowded streets, shopping malls or other places with low light. Metal 360 Degree Swivel Clip: Maintain as much freedom as possible for your child while keeping the bracelet secure. Swivel clip rotates in all directions so the cord won't get twisted up.