Support smooth turntable movement with a replacement roller ring assembly. The ring sits beneath the glass cooking tray and carries its weight as the tray turns. Small wheels travel along the floor of the microwave, helping the tray rotate with less wobbling or scraping. Even rotation moves food through different areas of the cooking spac...Read moree for more consistent heating. Replace the ring if it is cracked, melted, bent, or missing wheels. Installation requires no tools: remove the glass tray, place the ring around the center drive coupler, and set the tray back in position. Confirm the diameter and wheel layout before ordering.