THE ORIGINAL CAULK CAP — Trusted by DIYers and pros for 10 + years. Since 2014, our signature caulk cap has been the go-to solution for keeping caulk tubes airtight, job after job. JOIN 1 MILLION SATISFIED SAVERS. With over a million caulk saver caps sold on Amazon, customers rely on us to stop costly tube dry-outs and stretch every dollar of caulk. USA-DESIGNED & PATENTED DURABILITY. Engineered in Washington and protected by U.S. design patent D740662, these rugged caulk tube caps outlast project after project. REUSE FOR YEARS, REDUCE LANDFILL WASTE. Built from non-stick industrial polymer, our reusable caulk sealer replaces flimsy throw-away sleeves, saving caulk, cash, and the planet. FLEXIBLE CAP + STIFF PUNCTURE PIN = ZERO PLUGS. The pliable yellow sleeve rolls to loosen residue while the firm white spike clears hardened tips; rinse clean in seconds and your reusable caulk cap is ready for the next job., Manufacturer: GTR Technologies, Inc.