You are looking at a 2019-20 Detroit Pistons game jersey of Blake Griffin.  Jersey is probably game worn but has no paperwork and would need to be photomatched by Resolution Photomatching.  However, that costs $300 so I am not going to do that.  Purchased from Insider with excellent track record.  Jersey is made by Nike, has the mic pouch on the inside seam of the jersey, is a size 50+4, and has a team serial # of DET5144. Shipping with signature confirmation is $12.00.