This is the bottom case for the MacBook Retina 12" early 2015 model. This particular listing is for the silver bottom case.
Please note that there is no physical difference between any of the bottom case units, it is purely cosmetic.
Condition : Grade-A
Grade-A means that although used, this part is in excellent condition for it's age and if there are any cosmetic blemishes, they will be very minor.
Part Number(s) : 661-02245, 613-01555, 818-01746, 020-8504, A1527 FQM6
Warranty : 3months
Compatibility: