Reflective Stripe Design: The reflective stripe in the elastic cord allows the child to receive outside light in low light and reflect it, making the child's position more obvious and reducing the likelihood of being lost, as well as ensuring the child's safety to some extent. Applicable Scenarios: Wearing a child safety harness when out and about with parents, at the mall, playground or any other public place where there are a lot of people, ensures that children can play freely and safely under parental protection. Adjustable Wrist Strap: The strap can be adjusted to the size of your wrist, and the elastic cord can be retracted freely up to 1.5m. The bungee cord can be rotated 360° from the strap, so you don't have to worry about twisting it. Comfortable and non-slip material: The safety harness wrist strap is made of a high-quality cotton material that is soft and gentle on the skin, which is breathable and reduces friction on the skin for greater comfort during use. Improved Key Lock: Added configuration for unlocking with a key. The lock cannot be opened unless the parent takes the key to the lock.