Magic Chef K0R-161S-3512517200 Microwave Roller Ring Replacement roller wheels / turntable support for Magic Chef / Ewave microwave ovens. Ring is 10 1/2 inches in diameter Wheels are approximately 5/8 inch in diameter THIS ROLLER ONLY WORKS IN CERTAIN MODELS. BEFORE ORDERING, PLEASE CHECK COMPATIBILITY WITH YOUR MODEL BY LOCATING YOUR MODEL NUMBER IN THE LIST BELOW Magic Chef part # 3512517200