Designed better and built to guarantee many years of superior, repair-free performance, these units have platforms spun from 11 gauge safety plate with 2" perimeters rolled on 1/2" radii. Zerk lubricated ball bearings and 3-1/2" oil impregnated bronze sleeve bearings provide smooth, effortless revolving motion on 2-1/4" cold-rolled steel shaft. Platform is 6' diameter to accommodate up to 15 children. Powder coated as shown.