[COMPATIBLE MODEL] The alternative equipment for is ONLY tournament for 250W Blender (MB1001 Series), Does NOT fit for Mini or Baby . [EASY TO INSTALL] 1. Take a towel, with a towel wrap blade 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 standard equipment 2 x blade package 4 x sealing ring Only the above package content, different merchandise are not included. Note: Light and diverse exhibits could cause the colour of the object in the photograph a chunk diverse from the genuine thing. The measurement allowed error is +/- 1-3cm.