These V-Drive Boat rudder stuffing boxes are made of stainless steel and have Delrin inserts for wear. They feature double lip seals, greasable and are available in 1" and 1 1/8" rudder shaft diameters. They come blank with a 4" x 4" base plate. The barrel on the bottom is 1 1/2" round and made extra long to be trimmed to the bottom of the boat.