Support pillars for mounting onto workbench tops: The support pillars are available in four different heights and must be screwed directly onto the top surface (by the customer) using the fastening material provided. Capacity 100 kg (The load capacity on Universal, Eterlux and Resin tops is 50 kg). Fastening material included. Specification: steel profile, perforated on four sides in increments of 50 mm for attaching the superstructure components with minimum use of screws. Colour: according to colour chart. Minimum top thickness 40 mm. Only suitable for mounting on workbench tops made from beechwood, multiplex, universal, Eterlux, resin and ABS.