30 E Track O Ring Fitting f Enclosed Trailer Toy Hauler Van Truck Cargo Tie Down30 New Aftermarket Replacement Heavy Duty E Track O Ring Tie Down Fittings This set of 30 heavy duty E Track O Ring fittings snaps into any standard E Track or A Track slot via a spring loaded locking fitting, instantly creating a secure anchor point for ratchet straps, S hooks, chains, or webbing. Ideal for strapping down cargo, motorcycles, ATVs, furniture, and equipment in enclosed trailers, toy haulers, cargo vans, flatbed trucks, and more. E