CombPal 3", 3 1/2" jumbo guide attachment, it fits all CombPal combs (CombPal comb is not included). | Must be attached to CombPal comb, provides consistent length and angle. Shows you how much to cut and where to stop. Avoids mistakes. | Longer guides than clippers, good for both men’s and women's short layered hair cut. Not for extremely fine hair. Key Product Features | A professional haircut in an easy way, you can make your investment back in just one haircut!