Brand new 80mm bore size pin boss bushing set of 4 pieces. Fits a wide range of excavator buckets, couplers, frost teeth, breakers. This is priced at a set of 4 piece and we have several sizes available. We carry and fabricate a full line of skid steer attachments and excavator attachments. See our store for items or ask if you have a specific piece you dont see. 4 pin boss total. 2 pieces 2 wide. 2 pieces 3 wide. Made proudly in the USA with USA Steel. Bolt hole in all 4 pieces.