The Heavyweight Trolley is an overhead dog trolley exerciser that allows freedom for dogs and ensures safety. After Selecting 2 Points to Install Screw Hooks, Attach Shock Absorber Spring to Open Eye Screw. Slide Protective Stopper. Slip Pulley Lead and Second Stopper. Put Cable Through Closed Eye and Tighten Wire Nuts. It includes 10' pulley lead, is water proof and suitable for dogs over 50 lb and under 75 lb.
