This is a White Mitchell & Ness 2007-08 Hardwood Classics NBA Finals Patch Boston Celtics Jersey that has been hand signed by Kevin Garnett. This jersey is Size M. This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof witness sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. A certificate can be printed on Beckett's website for the matching authentication number.