Compatible with Bosh ART 30-36 LI, ART 30, ART 27 and ART 24 brush cutters Dual line spool: Spool diameter: 1.6 mm, Spool length: 6 m, Spool mode: F016800351 Material: ABS spool and durable polyamide nylon line, flexible and long service life. This kind of material can reduce drag and achieve fast cutting Save operating time: Easy to use and install Pre-wound, tool-free installation, inserts in and out of the trimmer for easy operation, long lasting, saves your time and energy Precautions: Strong centrifugal force and fast cutting when using, it is recommended to wear eye protection and long pants to avoid unnecessary injuries. And this cordless weed eater parts refill is only suitable for tender weeds. It is recommended to use blades for cutting powerful weeds CHOYCLIT is committed to providing each customer with the highest standard of customer service.