Mangrove Jack's Screw Cap for PET Bottle x 100

100 screw caps for PET bottles. Includes a tamper-proof seal that allows you to tell if a bottle has already been opened.

If you are using these on bottles that already have the tamper-proof seal left on from the last use, you will need to cut off the old one with a good pair of scissors before the new cap will properly screw on.