[Liberate Your Body]Holding tools for a long time can cause sore hands and shoulder . These problems are easily solved with this pulley; this project is not suitable for curved poles. [Universal Fittings] for most backpack lawn mowers on the market. Fits 26mm axle tubes. [Height Adjustable]According to the user's height and the needs of the use scene, the height of the support wheel can be adjusted at any time. [Easy to Install and Adjust]No more stripping your lawn; Trims well around rock and border edges. Colour:black Material:metal+plastic Size: 35 x 12 x 30cm Package Contents: 1 x lawn mower support wheels 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.