An Extender Caulk/Adhesive Gun minimizes the need to bend, climb, or reach when caulking sub-floors, ceilings, walls, roofs, etc. About 45 inches long and less than 2 pounds, the gun accommodates 30-ounce caulk/adhesive tubes and features double, reinforced steel support rods, t-bar, and a reversible 2-in-1 joist guide.