TAJIMA CNV-100SP26 Premium-Grade Caulk Gun with a 26:1 Thrust. 1/10 Gallon Size. Slip-resistant handle, Extra long Barrel for easy reloading. Puncture Tool is extra long. Ergonomic and comfortable grips. 360 degrees rotation. Enhanced SST thrust system for dependable, non-slip performance. Extra-long barrels for fast and hassle-free tube reloads. Extra-long seal puncture pins to for the new extra-long tube nozzles. Comfortable, ergonomic handles with non-slip grips, full 360 degree rotation.