Material: strong and durable double-wire nylon For large-area work with a diameter of up to 30 cm Wire adjustment by simple automatic pressure Connection: left-hand thread M10 x 1.25 (compatible with brush cutters and multi-function tools from many manufacturers) Product description Technical characteristics: Thread: M10 x 1.25. Thread type: left-hand thread. Capacity: approx. 2.5 m. Diameter: approx. 14 cm. Height: approx. 7.5 cm. Wire type: 3 mm diameter round wire, suitable for wires up to 3 mm. (You can wind anything from 0.5 to 3.0 mm. The thicker the wire, the less winding is required. If you want to wind 3 mm, then a length of 2.5 m to 3 m would be required. The thread is adjusted during operation: To do this, tap the top of the mowing head on the ground, part of the thread will come loose. The centrifugal force will help to restore the threads. Compatible with all brush cutters with an M10 left-hand thread and a speed of 1.25 such as Powermat, Erman, Fuxtec, Timbertech, Brast,