Material: Artificial leather Size: 2.5*30 cm / 0.98"*11.70", 2.5*37 cm / 0.98"*14.43", 2.5*42 cm / 0.98"*16.38", 2.5*51 cm / 0.98"*19.89" Color: red, blue, black, pink 1. Made of soft PU leather, comfortable to wear without hurting the pet's neck, and with solid metal rivets, it shows the perfect combination of fashion and personality. 2. Adjustable length design, suitable for dogs and cats of different sizes, whether small or medium-sized dogs can find the right size. 3. The black classic style is versatile and dirt-resistant, and the rivet decoration adds a tough style, making your pet the focus of the street and showing a unique taste. 4. The rounded rivet spikes designed specifically for pets have a cool appearance but do not hurt pets or others, and are safe and reliable. 5. Suitable for daily travel, training and competitions and other scenes, it enhances the overall shape of the pet and is an ideal choice for pet owners,.