This BRITPART Drop Arm Ball Joint is designed for Land Rover Defender, Discovery 1, and Range Rover vehicles. It serves as a replacement part for the front steering system, specifically the ball joint of the drop arm. The part number RBG000010G is a quality product from Britpart, a reputable brand known for manufacturing reliable vehicle components. This ball joint is compatible with OE/OEM numbers RBG000010, RTC4198, and STC3295, ensuring a proper fit and performance for your Land Rover vehicle.