Wheels come as either solid or spoke-style in sizes ranging from 1-in.-diameter finger wheels to 23-in.-diameter handwheels. Materials include aluminum, cast iron, and plastics. Polishing, anodizing, and special platings or paints are available. Wheels feature a stationary, revolving, or foldaway handle for safety and ease of use and can be customized with arbor holes, keyways, set-screw holes, and reduced hubs.