Easy to use: preheat unit for 10 minutes, open lid and position PVC, close lid, rotate until pliable, remove PVC and form bend. Heavy duty, insulated metal walls and cover with reflective interior for efficient, even heat. Full length door for easy loading and unloading. On/off switch with indicator light. Sturdy wheels for easy mobility. Use two units in tandem to heat large sweep bends. The 1/2"-6" capacity models have double doors with piano hinges to allow heating shorter lengths with one door open. Optional PVC Roller Support keeps PVC pipe from collapsing while forming the bend. We strongly recommend this option when using this bender.