The product is an OEM 18 x 7.5" front alloy rim wheel in silver color, designed for 08-13 BMW 135I models. It comes with a wheel center cap,tpms sensor and has a bolt pattern of 5x120. The rim has an offset of 49 and is made of alloy material. This BMW wheel is a genuine OEM part with the manufacturer part number 6779800 and interchange part number 36116779800.