Dingo Gear harness with Cobra system that's a handmade product, designed for working dogs, special forces dogs, for dog trainings, ipo, K9 and for every customer who will enjoy: very durable construction, clever Cora system, Useful handle, Great look and extra durability. Black harness for dog in work is cool looking and strong, and their advantage - Cobra system - is certified buckle done by austrialpin company and used by alpinists, so is very tough and also easy to fasten and unfastened quickly. It is placed on the one side of harness (one buckle). dog training harness are safe for animals and humans. Handler, decoy or trainer can hold the dog by using a handle on the top of harness. Washable in 30 Celsius degrees. Handmade by Dingo Gear team in Poland. Size details: measure only dog waist. If waist circumference is OK all other dimensions will be suitable thanks to adjustments (but remember This heavy duty Harness is a product dedicated for working dogs so for medium and large breeds). m size 60 to 75 cm circuit in waist, L size 75 to 90 cm circuit in waist, XL size 90 to 105 circuit in waist.