X-Epil Wax Cartridges with Wide Roll Head for Body and Legs 100 ml. The X-Epil wax cartridges with a wide roll head are suitable for the waxing device that works with wax cartridges, but not in the conventional sense. The X-Epil wax cartridge is housed in a handheld device with a cable, where the wax is heated and applied. It is an oil-soluble wax. Overheating of the wax is not possible. This system allows for absolutely clean and efficient work. No sticky device, switches, or spatulas, and no sticky hands. Another significant advantage is: no hot cartridge in your hands.