【Durable material】 Lawn Mower Accessories with Durable Plastic Knobs, Lawn Mower Head, Aluminum with Aluminum Nut Left,you can use it for a long time. 【Effective】 The replacement spool makes the tedious work of manual threading easier. It is very suitable for mowing the lawn, and it can be optimized to achieve the best precise mowing effect, and the cutting efficiency is higher. 【Strong compatibility】 The self-contained spools of these nylon trimmer heads are suitable for most types of trimmers. lawn and are very compatible. Product Description Specifications: Color: black Product size: (as shown in the picture) Cutter head: 12 * 7.5cm Nut: M10 * 1.25 Line: 2 meters long, 2.4mm diameter Quantity: 2 Package Content: 2 * Brush Cutter Head Features: 1. It is an ideal choice for cutting low grass, tall grass and weeds. 2. Suitable for most trimmers. 3. Compact, sturdy, uninterrupted when mowing and clean. 4. Operable and easy to use efficiently.