This is a safety device designed to keep toddlers close to their parents in crowded areas. 

Key Features and Design

Secure Connection: The device consists of two adjustable wristbands, one for the adult and a smaller one for the child, connected by a flexible coil.

Durable Coil: The linking coil is often made of retractable steel rope wrapped in a durable, sometimes "scissors-proof" PU material, preventing it from being easily cut.

Comfort and Flexibility: Most models feature 360-degree rotating connectors to prevent tangling and offer flexibility during movement. The wristbands are typically made of soft, breathable, and skin-friendly materials like neoprene for comfort during long use.

Adjustable Reach: Depending on the model, the coil can extend between 1.5 meters (approx. 5 feet) and 2.5 meters (approx. 8 feet)