Features:1. Auto Feed System Replacement: With Auto Feed System Replacement Spool eases the tedious work of hand-winding spools. Easy to operate.2. Cuts Fast and Wearable: High-quality spool trimmers for a better replacement and continuous operation.3. Saving Effort: Automatically feed the cutting rope with centrifugal force, so that you are not so tired during mowing.4. Accessories: Contained 6 x Replacement Spool, 1 x Spool Cap, 1 x Spring.5. Universal. Compatible with more models and easy to install.Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Spool:Spool material: ABSThread material: nylon (transparent)Cable length: 9.144m*1.65mmSpool Cap:Material: ABSSize: 86*34mmSpring:Material: carbon steelSize: 23*36mmNote:1. Please wear goggles and long pants when using this product to avoid injury;2. The spool only suitable for tender weeds.