Check the listing for details. StopLossBag 4 Pack. Condition: New. Listed at 12.74 USD. NEW, StopLossBag, 4 Pack, 160882, StopLossBags™ prevent finish from going bad, Special three-ply bag wall keeps finish in and oxygen out, More usable finish saves money, Evaporation and oxidation begin when you first open a can of finish, and each time you open the can it gets worse, eventually rendering any remaining finish unusable. Transferring the finish into one of our StopLossBags™ and squeezing out the air means the finish can be used to the last drop. StopLossBags™ are made from a special 3 ply wall, each ply being a different material and thickness to prevent transpiration of water, alcohol, organic solvents and oxygen. Finish stays in, oxygen stays out, squeeze out only what finish you need and the rest of the finish in the bag stays fresh until you need it. It’s really that.NEW, StopLossBag, 4 Pack, 160882, StopLossBags™ prevent finish from going bad, Special three-ply bag wall keeps finish in and oxygen out, More usable finish saves money, Evaporation and oxidation begin when you first open a can of finish, and each time you open the can it gets worse, eventually rendering any remaining finish unusable. Transferring the finish into one of our StopLossBags™ and squeezing out the air means the finish can be used to the last drop. StopLossBags™ are made from a special 3 ply wall, each ply being a different material and thickness to prevent transpiration of water, alcohol, organic solvents and oxygen. Finish stays in, oxygen stays out, squeeze out only what finish you need and the rest of the finish in the bag stays fresh until you need it. It’s really that.