Carbon Steel blades with sharp cutting edge. High-capacity lithium battery can double the usage time. Whole body washable, can be rinsed after use. LED power display five gears of charging states, can let you know the dump energy. With 4 comb attachments(3mm, 6mm, 9mm, 12mm only for steel head ,for ceramic head have 4-6mm/7-9mm/10-12mm/16-18mm). Lubricating oil is liquid, belongs to the contraband goods, the airline and customs don't accept, we removed it, please note !