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