【Compatibility】 The pour spout cover is compatible with Ninja blenders, ONLY compatible with OLDER square lid of Ninja blender 72-oz. pitchers. Models includes BL550, BL500C, BL500, BL610, BL642, BL660, BL660C, BL700WM, BL700RC, BL700C, BL700, BL740, BL770, BL771, BL780, BL780CO, NC600CCO, NJ600, NJ602, NJ600C, NJ600RC, NJ602CO, NJ602NQ, NJ602Q, NJ602NW, please check the model number of your pitcher before purchasing.