MDI knobs are available with either inserts or studs in any thread size, length or depth, including metric. Molded from reinforced polymer to provide maximum resitatnce to torque, they also feature a shoulder that prevents clamping pressure from relaxing over time.

MDI manufactures three styles of plastic tube closures available in several sizes, materials and colors.

MDI Reducer Bushings fit most standard chair bases. Allow for mounting of 1 or 1 1/2 in poles. Ideal for display fixtures, health care standards, charts, and education equipment.