【Material】 – Made of aluminum alloy with strong nylon double thread. 【Design】 – Double head head with pointed tip automatically. And the line can be filled. Fits most lawn mowers. 【Lightweight】 – Compact size, lightweight, easy to carry and use. Fits most lawn mowers, universal type. 【Features】 – It features low vibration, wear resistance, practical firmness and compactness ensuring its durability. Easy to replace, this product is a great accessory for lawn mower tools. 【100% Satisfaction Guarantee】 – Backed by our lifetime warranty. If for any reason you are not satisfied with the trimmer head, please let us know, we will refund your money immediately, no questions asked. questions.