HQRP 11-1/4 inch Glass Turntable Tray for GE WB49X10097 PS651544 WB49X10034 WB39X78 Microwave Oven Cooking Plate + HQRP Coaster HQRP&reg; Replacement Microwave Plate plus HQRP&reg; Coaster; Overall diameter: 11 1/4 inches; Outside turntable track diameter where wheels fit: 8 3/4 inches; 1 Year warranty!