Hydro 5 Groomer 4-in-1 has 5 Ultra Glide Blades with Skin Guards that reduce friction between the skin and cartidge for less irritation. Its Hydrating Gel Reservoir lasts up to 2x as long as ordinary lubrication strips. Its Flip Trimmer enables you to precisely edge in one movement. Built in Power Trimmer and Comb with 3 adjustable settings so you can achieve your desired beard length. The trimmer comb & blade are easily removed for easy cleaning and rinsing and the handle is compatiable with all Hydro Cartridges.