I'm not seeing the rubber piece on this replacement caliper.

ACDelco Professional 18FR624 Front Driver Side Disc Brake Caliper Assembly (Friction Ready Non-Coated), Remanufactured https://www.amazon.com/dp/B000EQTNI0/ref=cm_sw_r_apan_glt_fabc_WTRHKTZJA7QMFC3MNP0W

Is it on the part the caliper bolts on to?