Feature●Ideal for 55 gallon plastic poly buttress drum.●Sealing gasket and tight treads design protect the barrel from leakage.●Package include 4pcs 2 inch bung caps with gaskets.●Easy to tighten and remove from the drum hole.●If you have any questions, please contact us directly and we will provide you with satisfactory solutions.Description APUXON 4pcs 2" Bung Caps, 55 Gallon Plastic Poly Buttress Drum Bung plugs - Fine Thread