GE Microwave Oven Roller Wheel / Turntable Support / Rotating Ring WB06X10001,brown THIS ROLLER ONLY WORKS IN CERTAIN MODELS. BEFORE ORDERING, PLEASE CHECK COMPATIBILITY BY LOCATING YOUR MODEL NUMBER IN THE PRODUCT DESCRIPTION BELOW. DO NOT ORDER IF YOU DON'T SEE YOUR MODEL LISTED!! The diameter of the ring is approximately 8 7/8 Inches.Each wheel measures approximately 5/8 inch in diamteter. The roller wheel assembly sits underneath the microwave glass tray and is necessary for the turntable plate to turn. This turntable support replaces GE part # WB06X10001