[COMPATIBLE MODEL] The replacement equipment for is ONLY match for 250W Blender (MB1001 Series), Does NOT event for Mini or Baby . [EASY TO INSTALL] 1. Take a towel, with a towel wrap blade along 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 package 2 x blade tools four x sealing ring Only the above kit content, different merchandise are usually not included. Note: Light and various reveals can cause the colour of the item within the photo somewhat various from the real thing. The measurement allowed error is +/- 1-3cm.