Features: Make of Aluminum alloy s, high strength, no deformation, rust and wear resistance. The round shape has both operability and stable gripping, improve the control performances. Draining feature makes it easy rinsing for after fishing maintenance. The power handle knob is designed to be ergonomic, it's more suitable for hand grip. Comes with mounting accessories for easy installation to the handle. Specifications: : Aluminum alloy Size: Small/M/L Small diameter: 35mm/1.38inch M diameter: 38mm/1.50inch L diameter: 41mm/1.61inch Note: 1. Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2. There is a logos at the bottom of the Fishing Handle Knob. Package includes: 1set Spinnings Reel Power Knob