This is a set of BDR Square pucks with studs. There are two MK3 and one MK4 which the previous owner ordered as such to tune the sound on his CD player. Usually, you have the BDR Cones screwed into the Pucks and then mount them under your component but the previous owner misplaced the Cones after a move so only the Pucks you see here and the studs are for sale in this listing. Each Puck is 2 5/8″ on each side (square shape) and the MK4 is a bit “shorter” but has a longer stud. We have priced this very low for a quick sale and leave it to your imagination on how you can use this with your component.
Cosmetically, they are in nice shape. Minor scuff marks common with use but nothing major. They will be securely packed for safe shipping.