All of our sealing covers are made using a strong, durable iron to ensure stability and longevity no matter what the application. The gasket in our steel drum cover can seal the drum hole and prevent leakage during storage or transportation, giving you . Features - ColorAssorted Color - Material: Iron. - Size: 3.50X3.50X1.10cm/1.38X1.38X0.43inch (S). 7.00X7.00X1.10cm/2.75X2.75X0.43inch (L). - With our sealing cover with strong airtightness, your drum will not leak in the storage. - It can be used in gallon drums. This type is fit for tight or closed oil drums, a good choice to replace your old ones. - The barrel stopper is made of iron plate, stamping process, durable and . - Fine workmanship makes you safer and more secure. Suits for tons barrels, iron barrels. - Convenient to use, our covers can be easily screwed to or removed from the drum hole by screws. Package list: Sealing Lids