Description:Material: The bung caps are made of quality plastic, strong corrosion and high-temperature resistance, tough and resistant to deformation, which can be service for long time.Size: Each bung cap diameter measures about 3.11 inches(79mm) for inner diameter and height of the bung cap is 1.1 inches(28mm).Advantages: The bung caps can tightly lock the bucket outlet and seal perfectly, preventing the bucket from leaking during storage. And it can prevent dust and debris from entering to protect the contents of the bucket. The plug caps have clear threads and can be easily screwed in or out of the bucket hole, so you can use them with confidence.Applications: Use the bung cap to replace old and worn down lids on your drums when storing water or anything else on your house, farm and ranch.