Compatible Models: Fit for Bosch Art 23 SL (3600HA5000), ART 23 SL (3600HA5000), ART 23 SL (3600HA5070), ART 2300 (3600HA5002), ART 23-28 (3600HA5001), ART 26 SL (3600HA. 5100), ART 26SL (000000) (HA5170), ART EASY Trimmer 【Replacement Spool Specifications & Packing List】: The line on each replacement line spool is 4.9 meters long. - The line has a thickness or diameter of 1.65 mm. 6Pcs Replacement Spools for Trimmer Autofeed System Replacement Spool: This trimmer replacement spool is compatible with Bosch trimmers. When in use, the spool can use centrifugal force to transport the trimmer line as needed, reducing the tedious work of manually winding the spool and improving efficiency. High Efficiency: The line spool can be stretched and cushioned under the impact of a hard surface, and its aerodynamic shape provides more efficient cutting and lower resistance, making weeding more efficient. Durable Material: The trimmer line is made of durable ABS spool and premium nylon cord, which