Masontops Wide Mouth Pickle Pipe Silicone Mason Jar Canning Lid (4-Pack) Professional Blow from a hammer loosens

Blow from a hammer loosens or tightens rusted or frozen screws

and hobby projects

PUR-laminated nose ensures perfect corners without paper fuzz-up during finishing and sanding

even in full sun

Safe for coating drinking water holding tanks or cisterns

Masontops Wide Mouth Pickle Pipe Silicone Mason Jar Canning Lid (4-Pack) Professional Blow from a hammer loosensThe patented Pickle Pipes from Masontops are made out of silicone and designed to automatically vent fermentation gas through a one way valve without letting in any oxygen that can cause spoilage. Its the easiest airlock to use and doesn't require any daily monitoring or burping.