Yebeauty Highlight Cap is made of silica gel which can be cleaned and used repeatedly. Professional hair highlight dyeing cap with Hook has a brim which can well protect the scalp skin eyes and prevent hair dye from contacting it. Instructions: 1. Put on the highlight cap and determine the holes that need to be dyed according to your preferences. 2. Use a metal hook to pierce where needed and put on a Highlight Cap. 3. Use metal hooks to pick out the hair and dye it. Silicone cap for highlighting hair is not only suitable for salons it can also be used at home and you can enjoy the salon-like feeling at home. Material: Silicone Diameter: Approx. 11.8 inches Height: Approx.9.1 inches Package includes: 1 x Silicone Highlight Caps 1 x Stainless Steel Hook