This is a lightweight and robust tower unit for use by one person on site use where space is limited or in place of a step ladder easy operation simply unfold lock into place fit the board and the centerfold tower is ready to go the large wheels enable the centerfold to be easily pushed into place closed height m 18 open height m 18 material aluminium usage type heavy duty warranty 5 year platform height m 02 170 open depth m 07 weight kg 32