DESC: *Stop your dog from jumping*Nylon with heavy-duty stitching*Works both on or off a leashChronic jumpers can be a danger to themselves, other dogs, and people. Sometimes a No Jump Harness is required to discourage this habit. Restrict the use of your pet's rear legs and he will soon learn not to jump. The durable harness works by preventing his back legs from fully flexing, so he cannot jump. When your dog wears the No Jump Harness, he will be able to walk, but not run or jump. The harness is made of sturdy nylon; available in Black only and fits dogs from 10 lbs. to 85 lbs. Collar sold separately.