... press-coating heater,hot glue gun,chocolate extruder,shoe dryer,hand/foot warmer,massager,physical therapy heater. 1) Aluminum shell. PTC ... hair crimper, wax melting heater, humidifier, water boiler, liquid warmer, coffee warmer, polymer press-coating heater, hot glue gun, chocolate extruder. ... 24Physical therapyLG-48V-60T150257606~24Physical therapyLG-48V-70T150257706~24Hand warmer PTC ceramic heater