1. 10 Color and 10 Length Optional: For meeting your needs, these Cutting Guides Combs made by 10 different colors for each size. Each color for one cutting length( 1 or 16,1 or 8, 3 or 16,1 or 4, 3 or 8, 1 or 2, 5 or 8, 3 or 4, 7 or 8, 1 inch), offering the full range options with seamless accuracy. 2. Compatible with most Whal Clippers: For clippers(Width 38.5mm or Length 45.5mm), such as Taper 2000, Designer, Super Taper II, Senior, Icon, Super Taper, Pro Basic, 5 Star Balding, 5 Star Legend, 5 Star Magic Clip, 5 Star Senior. Notice: 22 Series no fits. Please kindly and carefully check whether these guards fit with your clippers blade before order. 3.Perfect Performance: These 10 Color Coded Cutting Guides snap securely on the blade for a reliable match while you're trimming. Each comb is designed to glide through hair quickly and efficiently for saving time for both you and your client. 4. Easy to Use: These guide combs are easy to snap on and take off. You will love the different colors. You don't have to rifle through the whole box looking for the right ones. Just take the color you need. 5. Make Different Hairstyle: 10 optional cutting lengths let you clip various length of hair. Make your haircut easy and funny.