Versatile, Spry Nesting Training Table Base adjusts to fit tabletops from 48" to 72" wide and from 24" to 30" deep so you can set up the configuration you need. It rolls on 2.5" polyurethane casters with brakes for easy setup. Once assembled, it nests with a cable-controlled folding mechanism for compact storage. The width-adjustable beam is made of 50mm x 25mm x 1.5mm cold-rolled steel for dependable use. Brackets and legs are made of aluminum alloy pipe while the joint and foot base are made of 4mm thick, die-cast magnesium. Modesty panel and tabletops are not included. Assembled table meets BIFMA standards.Versatile, Spry Nesting Training Table Base adjusts to fit tabletops from 48" to 72" wide and from 24" to 30" deep so you can set up the configuration you need. It rolls on 2.5" polyurethane casters with brakes for easy setup. Once assembled, it nests with a cable-controlled folding mechanism for compact storage. The width-adjustable beam is made of 50mm x 25mm x 1.5mm cold-rolled steel for dependable use. Brackets and legs are made of aluminum alloy pipe while the joint and foot base are made of 4mm thick, die-cast magnesium. Modesty panel and tabletops are not included. Assembled table meets BIFMA standards.