This Standard Size Smooth Rod Ratchet Caulking Gun is perfect for a variety of home improvement projects. Use this plunger-style caulking gun in the bathroom to seal the bathtub or toilet base, on the kitchen sink, while plumbing, and outside to seal windows. The trigger pushes the smoothly pushes the bottom of any standard size sealant/caulking tube for even flow. Fits standard size caulking and sealant tubes. Measures approximately 13"x2.5"x6. Made with iron.