1、Made of quality material, wear resistant, comfortable, durable for long time use. 2、With reflective pattern, it can be used at night. 3、With buckle at both end, can be adjusted the size, according your pet chest to adjust. 4、Easy to use, just pull over the dogs head and attach the dog lead. 5、Suitable for large dog. Convenient for your to control dog, prevent from running and losing. Features: 1.Made of quality material, wear resistant, comfortable, durable for long time use. 2.With reflective pattern, it can be used at night. 3.With buckle at both end, can be adjusted the size, according your pet chest to adjust. 4.Easy to use, just pull over the dogs head and attach the dog lead. 5.Suitable for large dog. Convenient for your to control dog, prevent from running and losing. Specifications: Material: polyester + sponge Color: black+green Optional Size: S, M, L Size Width(cm/in) Neck(cm/in) Length(cm/in) S 4/1.6 38/15 52/20.5 M 5/2 45/17.7 60/23.6 L 5/2 55/21.7 76/29.9 Packing List: 1*Pet Dog Collar