1. & STRONG - The kit is made of premium material and tests had been performed for long lasting use. You don't need to worry about replacing it frequently, saving your time and the maintenance cost. 2.COMPATIBLITY - socket couples the motor to the blade assembly and protects the motor if the blade assembly is blocked from rotating. 3.EASY TO INSTALL - It take you about 10 minutes to replace the drive socket kit. DIY installation, full of accomplishment. Colour:black Material:plastic Package Contents: 2 x Mixer accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.