EASY TO USE AT HOME: The razor comb can shorten the design, can safely shape and thin thick hair, can be used to trim hair of people and pets, you can DIY your favorite hair style. If you have thin hair, use the fine teeth side. If you have thick hair, use the wide teeth side | UNWANTED FACIAL HAIR: The razor comb is ideal for use on thin and thick hair cutting, styling and thinning. Ideal for quickly removing unwanted hair without the hassles of shaving. Can be used for men and women, beads, mustaches, and all facial hair | DOUBLE-SIDED HAIR TRIMMER COMB: Dual functional hair comb on one end and the double sided razor for thinning and trimming on the other. For use on all hair including facial hair | SAFELY CUTS HAIR: Hair cutter razor combs are used to shorten, shape, and thin the hair. The safety shielded razor protects from cutting or scratching your skin. (4) Cutting Lengths: Extra Short Hair Short Hair Medium Hair Light Hair | REUSABLE WITH INCLUDED BONUS BLADES: Extra sharp blades with 6 bonus razor blades included. Uses standard double sided replacement razor blades. For best results always use fresh new blades. Blades will last depending on thickness of hair, enough for you to use for a long time