Description All of our round thread caps are made using a strong, durable plastic to ensure stability and longevity no matter what the application. These thread caps are an finishing product for open tube ends as they can provide a clean, functional finish that is resistant to many common factors such as acids, alkali, heat and dirt. Features - Color: White. - Material: Plastic. - Size: 7.20 x 7.20 x 3.00cm/ 2.83 x 2.83 x 1.18 inch. - With our thread design and tight treads, your drum will not leak in the storage. - It can used in poly drums. This type is fit for tight or closed drums. - Barrel joint barrel fittings, used in, agricultural fertilizers, herbicides, pesticides, industrial chemicals. - Also suitable for sealing reverse osmosis, inks, paints, coatings, soaps and detergents, wastewater, organic and inorganic chemicals, etc. - Fine workmanship makes you safer and more secure. Suits for tons barrels, plastic barrels. Packing list10 x lids