1. Material: nylon + metal2. Size: M/L/XL, width 3.8 cm3. Adjustable range: M is about 38-47 cm, L is about 45-55 cm, XL is about 53-63 cm4. Weight: M is about 190 grams, L is about 200 grams, XL is about 210 grams5. Application: medium and large dogs6. Features: explosion-proof punch, thickened handle, comfortable grip, rounded corners and anti-stroke design, adjustable length, double-layer thick nylon, wear-resistant and durable

http://olla.gr/nylon-thickened-large-and-medium-sized-dog-traction-collar-pet-collar-size-m-black/