3 Pack Top Base Rubber Bushing Shock Pads for top of the motor. Compatible with Nutribullet 600W, 900W, NB-101B, NB-101S, NB-201, NBR-0601, NBR-1201, NB9-1301, NB-WL088D-23, 900 Pro Series Blenders Only. NOT Compatible with MB1001 and NOT Compatible with Nutribullet RX