Pair of 2.72" X 1.50" X 1.18" galvanized steel Dust Caps with E-Z Lube Rubber Plugs; For 7,000/8,000 Lbs (7K/8K) Trailer Axle Wheel Hubs, Wheel Bearing Protection; DC275L-DCRP (2 Included) Outer Diameter (O.D.): 2.72", Inner Diameter: 1.18", Depth: 1.52" Easy installation for protecting wheel bearings on 7000 lbs (7K) and 8000 lbs (8K) trailer axle hubs. Wide compatibility with 8 on 6.5 Trailer Axles 2.75" 7K/8K Dust Cap/Grease Cover