General description This set of 2 universal brush cutter heads is designed for use with garden petrol trimmers. The nylon replacement spool features an auto-feed system, making it easy to use and efficient for cutting and chopping weeds. Technical specifications Thread size: M10 x 1.25 left-hand thread Spool length: 8.2 feet / 2.5 meters Spool head diameter: 110 mm Material: Nylon, ABS, and polypropylene Size: 7.5 cm x 10 cm Compatibility and accessories Compatible with most straight shaft trimmers Includes 2 grass trimmer heads Installation Easy to install with an auto-feed system Eliminates the need for manual threading Usage Ideal for cutting and chopping weeds Lightweight and portable for convenient use Other information