ART 2800 VOLLEYBALL REFEREE CHAIR “GARA” Supporting framework in epoxy powder coated steel, telescopic central pillar with adjustable movement by manual winch and with safety lock. Decking with adjustable height in milled antislip aluminum, wheels for transport, seat with pvc folding shell, ladder, guard rail, adjustable height from 100 cm. to 150 cm. as regulation FIPAV, base size 130x79 cm.