... sticker 2.Blue or white, PVC 3.Equipped with stopper,in top wear, absolute one-off hole without repetition use, eliminate mask ... seal, appropriate heating cover with lid membrane, outer wall edge, in a tear when pulling cover the lid can easily tear and pulling ... supply different kinds of 5 gallon caps, three-in-one, two-in-one, four-in-one, recycle or one-way.With one time ...