Compatibility: Compatible with Bosch ART 30-36LI, AdvancedGrassCut36, ART 24, ART 27, ART 30, ART 24+, ART 27+, ART 30+ (2016 onwards models), replacement line spool (F016800351), mower spool cover (1600A 00X61/1600A00DU0/F016L72438) PREMIUM QUALITY: Made with premium ABS spool and durable nylon thread. Not easy to break, supports fast cutting and longer service life, can cut weeds easily and effectively. High Efficiency: The spool design reduces air resistance and cuts more efficiently, allowing you to reach hard-to-reach edges of your garden lawn. The aerodynamic shape allows the line to stretch and absorb shock on hard surfaces, providing less resistance for more efficient cuts. Time-saving: Automatic replacement of the bobbin feed system simplifies the tedious work of manual bobbin winding. Quick and easy replacement without tools. The 20 ft cutting line gives gardeners more space for pruning. Package Size: You will receive 3 replacement bobbins that fit perfectly in the thread holes. Portable 1.65mm for fast cutting.