[COMPATIBLE MODEL] The alternative accessories for is ONLY fit for 250W Blender (MB1001 Series), Does NOT match for Mini or Baby . [EASY TO INSTALL] 1. Take a towel, with a towel wrap blade together with his left hand holding. keeping the connecting shaft, connecting shaft rotate clockwise to fall. When installing counter-clockwise to tighten. Colour:Black Material:plastic Package Contents: 2 x traditional tools 2 x blade tools 4 x sealing ring Only the above kit content, assorted products usually are not included. Note: Light and assorted exhibits may cause the color of the item in the picture somewhat varied from the real thing. The size allowed error is +/- 1-3cm.