Polyester support drum, suitable for most 55-gallon polyethylene drums and barrels.
The gasket fits tightly, so there is no need to worry about leakage, so you can store it safely.
Size: 2 inches/5.08 cm bullet cover.
These bullet caps are used to insert the threaded bullet holes on the top of the polyethylene drum and the drum tube. The bolt threaded caps are tightly closed with an attached washer.
Package contains: 4pcs double-layer caps with washers.