Snack Attack Vending LLC is offering (4) Dixie Narco "E" Series Double Column Plastic "CAN" Shims. This is for the Dixie Narco drink vending machine models 501E, 522E & 600E. You will need (4) shims on each side of column if vending 12oz cans (Total of 8). The wider part of shim installs to the rear. These Can Shims are brand new from factory.