Features 1、Made of good quality materials, lightweight and durable for long time use 2、This is a centrifugal switch for single-phase motor, applicable to many machines, such as stitching machinery 3、Help start electric motor safely and quickly 4、Easy to install and use 5、20mm shaft diameter and 3000RPM Specification Features: Made of good quality materials, lightweight and durable for long time use. This is a centrifugal switch for single-phase motor, applicable to many machines, such as stitching machinery. Help start electric motor safely and quickly. Easy to install and use. 20mm shaft diameter and 3000RPM. Specification: Model: L20-202Y Material: Metal Revolutions Per Minute: 3000RPM Motor Shaft Diameter: Approx. 20mm Weight: Approx. 80g Package List: 1 x Centrifugal Switch Package List