The Makita B-02945 is a replacement nylon cutting head for petrol grass trimmers. It is compatible with Makita grass trimmer models EBH341U, RBC201, RBC2110, RBC251, RBC2510, BCX2500, BCX2510, RBC3101, and RBC320. This is a 2-thread Tap & Go head designed for 2.4 mm line. Adapter is not included.