This is the steering wheel backing trim piece for the left side for many different Lexus vehicles from 2013-2015. This is for Lexus ES300h, ES350, GS350, GS450h, RX350, and RX450h vehicles. This is a black colored plastic trim piece for the left side of the steering wheel backing.

Toyota part # 451870E030C0

Alternate part #'s 45187-0E030-C0

Item is number 5 in the Toyota diagram.