Safety Buckle- The side-release buckle is made of quality eco-friendly plastic with a safety lock to prevent the collar from accidentally opening Soft Padded Neoprene- The cushion of this exclusive feature gives dogs maximum comfort during activities. No sharp edges or unfolding seam seal. Heavy-duty stitching adds durability for long-lasting use 360 Reflective Straps - Reflective stitching for increased visibility from afar at night High Quality, Durable and Lightweight - Made in genuine nylon with good stitching, lightweight but durable, good for all conditions Strong and Easy to Use - 12 color high density webbing, quick release buckle, soft padded hardware and D-ring, this collar will make your pet adorable and stylish S width 1.5cm neck circumference 29 - 44.5cm recommended weight 4 - 10kg M width 2cm neck circumference 35 - 54cm recommended weight 9 - 17 .5 kg L width 2.5cm neck circumference 38 - 58cm recommended weight 15 - 22.5kg