Product Description Color: GrayOrangeRed (30-35 cm); Size S: 13.8"-15.7" (35-40 cm); Size M: 15.7"-17.7" (40-45 cm); Size L: 17.7"-19.7"(45-50 cm); Material: Nylon + 3M Reflective Material Package Content: 1 * Pet Collar 1. Comfortable - The wide, soft mesh padding and ergonomic design make this nylon dog collar comfortable and will not cause wear and tear on the dog's fur or skin. 2. 3M REFLECTIVE MATERIAL- Nylon webbing with 3M reflective material ensure high visibility and safety on the road at night. This padded collar is made of strong and durable reflective nylon webbing, neoprene padded material with sturdy buckle. Let your pet stay safe and be seen on your walks in the dark. 3. EASY TO USE AND WASH - Easy to wash and clean, our nylon dog collars are perfect for everyday use. 4. Adjustable Size Buckle-Adjustable system is convenient for adjusting neck circumference, saving time, durable buckle design, easy to put on and take off, strong and durable. 5. SIZE- Please measure your pet's neck with a tape. It is better to set aside 2-3cm (0.7-1.1inch) to ensure there is enough space for your pet's free breath. Size XS: 30.85cm (11.8"-13.8"); Size S: 13.8"-15.7" (35-40cm); Size M: 15.7"-17.7" (40-45cm); Size L: 45-50cm (17.7"-19.7").