[COMPATIBLE MODEL] The substitute package for is ONLY fit for 250W Blender (MB1001 Series), Does NOT tournament for Mini or Baby . [EASY TO INSTALL] 1. Take a towel, with a towel wrap blade together with his left hand holding. maintaining 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 equipment 4 x sealing ring Only the above equipment content, other item aren't included. Note: Light and sundry displays can cause the colour of the article in the photograph considerably diversified from the real thing. The size allowed error is +/- 1-3cm.