10:1 Thrust Ratio 1.5 lbs. / unit 10 10 oz. (1/10gal) CUTTER - Cuts the spout of caulk tubes. The cutter on model 250 is the only one of its kind. DRIP FREE - Drip-free models back off the pressure on the back of the caulk tube with each trigger squeeze, stopping the flow of material. EZ THRUST - Increases power and ease of use by advancing the push rod from the top of the friction plate instead of below like others in its class. GATOR TRIGGER - Increases comfort and decreases fatigue with an ergonomic, dual-composition trigger. Patented. HEXAGONAL PUSH ROD - Stronger and more durable than traditional round push rods. LADDER HOOK - The dispenser either has a ladder hook built into the end of the push rod or comes with one to attach to it. POKER - Equipped with a poker to break the seal on the end of caulk tubes.