NO-RISK PURCHAS :We provide a full refund if there are quality issues. If you have any other question, please contact us in any time. EASY TO USE: The customized guide comb is easy to install and remove as well as easy to clean and organize. PRACTICALITY:Eight different sizes of guide combs, including 1/8”,1/4”, 3/8”, 1/2”, 5/8”, 3/4”, 7/8”, and 1”, can meet Your various needs. HIGH QUALITY :It is made of high-quality ABS and aluminum materials, with metal clamps for precise adjustment and measurement. PERFECT FIT:Cutting Guides Guide combs is designed for Multiple models Wahl Hair Clippers, Premium Cutting Guides will fit all full-size clipper blades.