High-Density Nylon Material: Quality material gives maximum comfort to dogs, with no sharp edges or unfolded sewing joints. Heavy-duty stitching adds durability for long-lasting use. 35-50cm Adjustable Dog Collar: 2.5cm wide, suitable for medium and large-sized dogs, the adjustable length leaves room for growth, perfect for long-time use in different ages. Safety Locking Buckle: Easy and quick to wear and adjust length, not easy to get loose, preventing the collar from accidentally opening. Reflective Design: The dog collar will be reflective when lights shine on them at night, you can easily spot where your dog is in low-light conditions. Light Weight Design: Adding no burden to dogs' necks, comfortable for them to wear even during fast movement, not affect dog's activities. Specifications: Material: Nylon Size: 2.5cm width, 35-50cm adjustable length Package included: 1 x Dog Collar