This is a sports disc used by my family during their university days for Ultimate. Some were actually used in competition, and there is overall wear and tear, including scratches, stains that won't come off even when wiped, and discoloration due to age. Also, some discs have names written on the back, so please only purchase if you don't mind. I can provide the size and add more images if you ask in the comments section. I don't have any knowledge of Ultimate, so I can't provide detailed explanations of the products. I prefer to sell them as a set, but individual sales are also possible. Please understand that these items have been stored at home for a long time before purchasing.