【High-quality materials】: The thread head is made of solid aluminum, lightweight, corrosion-resistant, durable, practical and compact. It is an excellent accessory for grass trimmers. 【Product size】 About 72 x 44.5 mm. Practical and compact, an excellent accessory for lawn mowers. 【Easy to install】 Double head design, automatic tip. And the line can be reloaded. Suitable for most lawn mowers. 【Features】: This is a generic trimmer head suitable for most lawn mowers. Increases the speed of the machine, is a perfect accessory for the lawn mower. 【Wide Uses】: Grass trimmer head suitable for most lawn mowers, universal use. Suitable for many places, school, villa, football field, green space, cutting, park, etc. Note: The data are all measured manually, please allow 1-3cm error due to different light and display, there may be some color differences, please refer to the actual item received.