“Mono” Roller Wax Heater This new hand held roller wax heater allows you to hold the cartridge in its case and wax at the same time. ・removable lid to cover for salon hygiene ・light, practical and stylish suitable for all Nina soft wax cartridges ・Very efficient, productive with minimum effort, producing desired result ・Clean and quick and easy to use ・Portable “Duo” & “Trio” Roller Wax heaters The duo and trio versatile heaters, have all the features detailed above including a portable single use mono heater with the addition of the option of heating 2 or 3 different type waxes at the same time for immediate use.