Guardian Gear No-Jump Dog Harness No-jump harness to gently correct dogs with jumping problems Train dogs to walk in public without worry with our Guardian Gear No Jump Harness When dog tries to jump, the harness creates a gentle, but firm, resistance across his chest, correcting the impulse to jump Harness adjusts to fit any dog weighing 20-70-pound Measures 6-inch length by 5-1/2-inch width by 1-1/3-inch height