[Product dimensions:]- outer diamater 7.5 inch /18.9cm, inner diamater 6.9 inch /17.5cm, wheels are about0.55 inch /14mm tall,Inner diameter: 175mm,Outer diameter :189mm[ Ring for Turntable]- compatible with 10.6 inch -12.4 inch /27-31.5cm glass plate, great replacement for your older one.[High ]- ring made of high temperature material, durable and span.[Rotatable design]- with three small wheels, keep your food revolving in the , helps heat fast and balanced.Type: plate covercolor:As shownMaterial:plasticPackage Contents:4 x Turntable bracketOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.