Light Duty Castors with expander fitting to fix to hollow section tube

Options: Castors available in single or twin wheel versions
Wheel material: polypropylene or rubber
Wheel diameters: 50mm, 75mm, 100mm and 125mm.

Swivel and swivel brake castors complete with expanders/expansion adaptor fitting.

This fixes castors to round or square hollow tube, available in 4 sizes of expansion range. The expander fits inside the tube. Tighten the bolt under the castor and it expands to grip the tube wall.