Michigan State Spartans Heavy Weight Melamine 6 Piece Vintage Dinner Plate Set. This heavy weight Michigan State set of 6 plates features a Vintage Varsity design. Each plate measures 10.5 inches in diameter with a .5 inch depth and is made from a heavy weight melamine material. This Spartans plate set is top rack dishwasher safe and should not be microwaved. These MSU melamine plates are perfect for game day parties, tailgates and picnics. Go Spartans!! Officially licensed Michigan State Spartans fan gear.