【Liberate the body】Holding tools for a long time can cause sore hands and shoulder pains. Using this pulley can easily solve these problems;This item does not fit a curved pole. 【General Accessories】Perfectly suitable for most backpack mowers on the market. Suitable for 26mm or 28mm shaft 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.