【Speed Controller】: This product is a speed controller for hand drill, polishing machines, angle grinder, and fans. It offers seamless speed adjustment for optimal control. 【Material】: Made from sturdy PP material, this motor speed controller is designed to withstand regular use while maintaining its functionality. 【Product Dimensions】: With dimensions of 12cmx6.5cmx5.5cm, this compact size makes it easy to install and use without taking up too much space. 【Adjustable Speed Switch】: Comes with an adjustable speed switch that allows you to control the speed of your devices effortlessly according to your needs. 【Package Includes】: Each package comes with 1 piece of the 100V-120V Angle Grinder Speed Controller, ensuring you have everything you need to get started.     Specification: Material: PP Size Chart: 12cmx6.5cmx5.5cm/4.72inchx2.56inchx2.17inch Package Includes: 1x Motor Speed Controller Note: Please allow slightly errors 1-2cm differences due to manual measurement.