A good replacement for the power handle knob of fishing wheel. Made of plastic , it has durability and strength. Suitable for all kinds of fishing reels. This is a must-have for fishing enthusiasts. Detachable, easy to install and use Product Name:Fishing wheel rocker arm cover Applicable Population:Adult Applicable Type:Ocean boat fishing & River & Reservoir Pond & Management Field Due to manual measurement, the size by 2-3 centimeters. Due to weighing error, the weight may have a few grams difference, because of the different production batch, the product packaging may change, please understand. Colour:Black Material:plastic Package Contents: 10 arm cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.