The orange angle guide is with magnetic base applied to sharpening stone of ferrous metal construction
Unique design to guarantee exact angle regardless of blade size
It makes sharpening blade edge like a pro!
The black one has anti-slip rubber padding on the base and is suitable for use with traditional sharpening stones, ceramic whetstones, and other similar products.
Each integrated with 4 universal angles-14°, 17°, 20°, 25°