Durable and wear-resistant so the spool is replaced less often For optimal and precise trimming results It uses centrifugal force to transport the trimming thread as needed, effectively reducing the tedious work of manually winding the spool The spool line can be stretched and cushioned under a hard surface's impact. Its aerodynamic shape allows more effective cutting and reducing resistance, making weeding more efficient Suitable for Bosch ART 30-36 LI, AdvancedGrassCut36, ART 24, ART 27, ART 30, ART24+, ART27+, ART30+ (Models 2016 Onwards) Specifications: Nylon rope: 1.6mm gray indentation Length: 20FT/6m Size: 55*24mm Compatible with: Bosch ART 24 Bosch ART 30-36 LI Bosch ART 27 Bosch ART 30 Package included: 1 x Spool