1. material: this sharpener is made of PP, ABS, tungsten steel and ceramics to ensure functionality, stability and durability. It can remain stable and efficient in longterm use. 2.1424 adjustable angle: Builtin angle adjustment function, which can be adjusted from 14 24 degrees to the correct angle for western style and Asian style. It enables users to easily maintain various types of tools and keep them sharp. Users can flexibly adjust the angle according to the type of tool to achieve a close fit between the tool and the grinding wheel and provide a better sharpening effect. 3.Easy to use: this threeinone sharpener is easy to operate. Just put the tool into the appropriate slot, adjust the corresponding angle, and gently pull the handle (oneway pull) several times to sharpen the tool quickly and effectively. Every time it is used, it can keep the cutting tool sharp with good sharpness and shape. 4.Ergonomic handle and base: Ergonomic handle, comfortable grip. The nonslip ABS base further increases the stability and controllability in the use process, ensuring that satisfactory results can be obtained every time. It is designed to provide an efficient and convenient tool sharpening experience.