General description The Pack of Nylon Lawn Mower Replacement Spool is an essential accessory for maintaining your lawn. This product includes two replacement grass trimmer spools, each measuring 9m in length with a diameter of 1.6mm, along with a cap pack and a spring. The spool is designed for easy insertion and removal without tools, ensuring that it will not damage your device. Technical specifications Length of each spool: 9m Diameter of cutting line: 1.6mm Usage The replacement spool is designed for use with an automatic feeding system, which eliminates the need for manually winding spools. This feature reduces workload and enhances work efficiency, making mowing tasks easier. Installation To install the replacement spool, pass the trimmer line through the through hole and press it down. Insert the spring on the spool cap into the bottom slot of the trimmer, then press and rotate until the latch clicks into place to complete the installation.