Anti-Lost Safety DesignThe toddler seat belt walking belt keeps toddlers close to you, while the anti-lost wrist link keeps them independent during indoor or outdoor activities. Whether it's a playground, a crowded street, a mall or anywhere else Soft and Comfortable Wrist StrapPrevents uncomfortable chafing and sweating, and protects the toddler carrier walking belt from scratches and sweat. Adjustable child leash with super soft and comfortable breathable foam padding on anti-loss wrist chain Durable and Sturdy Extension CordAnti-lost wrist chain is made of retractable steel and wrapped in plastic, the toddler carrier walking belt is safer and more resistant to breakage. Our kids leash is 5 feet long and connects via a 360-degree swivel connector, and the anti-loss wristband gives kids plenty of freedom for energetic bursts and exploration Security Lock DesignUse the included key to lock and unlock the anti-lost wrist link at your convenience. Kids can't pull it out or twist it out. Child lock can prevent some troubles caused by children opening themselves in the crowd