Good material: Cotton cloth + steel wire + reflective material; environmental fabrics, easy to use, wrist straps are soft no friction, excellent ventilation, comfortable and breathable. Eco-friendly buckle: Eco-friendly buckle makes children feel at ease to play around, the breathable cotton materials can be used by your kids with no worries. Easy to use, Wrist straps are soft, Anti-pricking velcro, Can Adjust size, comfortable for parent and childs. Wide occasion: Suitable for shopping malls, walking, travel, stations, roads, outdoor, etc, to prevent children from losing in public places, to prevent accidents. Multi functional: Keep children close, offer children independence but keeps them safe at the same time. Suitable for looking after children, keep them close without watching them tightly, comfortable for parent and children. Pacakage include: It includes 2 pcs 150cm anti lost link with 360 degree rotatable stainless metal buckle and a soft skin-friendly wrist band, safe helper, easy to carry which will keep children more closer and safe which also can avoid any other destructive behavior any other accident.