KEEPS CAULK FLOWING IN COLD WEATHER – Save time and avoid clogs by keeping caulk, foam, and adhesives warm in freezing temps. Works down to -13ºF and holds steady at 80ºF using just 50 watts of power. HEATS UP TO 12 TUBES OR MORE – Fits 12 standard caulk tubes, 7 quart tubes, 12 sausage packs, or foam cans. Also great for warming sealant tape, grease cartridges, floor tiles, and even tools or lunch. DURABLE, HEAVY-DUTY CONSTRUCTION – Built tough with forest green CPAI-84 nylon shell, a patented heat-retaining inner barrier, and secure Velcro flap. Designed to stand up to jobsite wear and tear. VERSATILE POWER OPTIONS & STORAGE – Plug into 120V AC or a 12V DC inverter (not included) to power up anywhere. Includes front pouch for cord storage and an easy-access on/off switch. PORTABLE & EASY TO USE – Built-in back strap and quick-disconnect 1" nylon strap make transport simple. Great for contractors, handymen, and DIYers who work through all seasons.