【Design】 – The fine adjustment head adopts 4PCS line hole design, and the wire can be filled, which makes cutting flowers and weeds easier and faster. 【High Quality】 – The main body is made of high quality die-cast aluminum, and the grass rope is made of nylon. Can ensure long term durability. 【Easy to Install】 – Pass the nylon thread through the thread hole, tighten the screw with a wrench, then adjust the cutting head. So you can easily finish the job and keep working quickly. 【Features】 – It has the features of practicality, compactness, small vibration, wear resistance and durability, and no noise to others. 【Application】 – The fine adjustment head of the lawn mower is suitable for pruning machines with a diameter of no more than 30cm and is widely used in your green space and garden.