Hafele's 60mm (2-3/8") table legs are made of steel and have a static load rating of approximately 220 pounds per leg. The legs have a steel square mounting plate with an M10 bolt. Simply screw the leg into the mounting plate and then to the table. The set includes four H legs, four mounting plates and screws. The table legs come in Black Textured and Satin Nickel finishes. The 80mm (3-1/8") swiveling caster with brake has a plastic body and a black rubberized wheel and comes in Black with a choice of wheel type and Silver with a Silver wheel. The 80mm (3-1/8") twin-wheel casters (sold separately) screw directly into a threaded plate and have a load capacity of 88 pounds per caster.