Replacement Pins for 66-189810 is a package of 3 replacement pins for the "Easy to Use Link Remover" number 66-189810. This pins are friction fitted into the tool, you made need a plier to pull them out, once removed insert the replacement. Our suggestion would be to cut the pin a little shorter than originally supplied, this will help avoid breaking the pins prematurely. Supplied as a package of 3 pieces of the same size.