[metal 360 degree rotating clip] ensures the safety of the bracelet and provides freedom for your child as much as possible. The rotating clip rotates in all directions so that the wire does not twist[breathable wristband] use super soft and comfortable breathable sponge pad on the wristband, even if you wear it for several hours, it can also prevent uncomfortable scratches and sweating.[strong extension rope] the wrist guard ring is made of plastic wrapped retractable steel wire rope, which can't be cut by ordinary tools. It's safer and more resistant to damage.[safety lock design] use the attached keys to lock and unlock the wrist chain at your convenience. Children can't pull it out or wriggle it out. The kind of lock can prevent children from opening themselves in the crowd and cause some trouble.