RPM Discs have a large variety of seconds and overweight discs that we sell at a reduced rate. Typically these will have minor imperfections or miss stamps and in the case of the over weights they will be perfectly moulded but outside the PDGA allowable weight range. This means they can not be used in a PDGA sanctioned event. You may specify in the notes your preferences in terms of what disc you want. With the bulk lot 10 discs you will get an assortment of plastics.