BESTIA COLLARS presents:The 2 inch Bestia Dog Sport - Fast Release Collar easy to put on and off thanks to the fast release buckle size adjustment one time only machine washable without the centrifugal process and without adding any detergent. ultra heavy duty hardware- brakeload over 1000 kg lifelong durability Size chart: S - fitting a neck of 30 to 45 cm (11.8 - 17.7 inch) M - fitting a neck of 40 to 55 cm (15.7 - 21.6 inch)L - fitting a neck of 50 to 65 cm (19.7 - 25.6 inch)XL - fitting a neck of 60 to 75 cm (23.6 - 29.5 inch)XXL - fitting a neck of 70 to 85 cm (27.5 - 33.5inch) ultra heavy duty - lifelong durability - waterproof - handmade - comfortable