The strongest quick height adjusted portable system on the market. Heavy duty pole made up of 3 links of 90mm diameter. Adjusts from 2.45 to 3.05m. Sturdy base which requires 190kg of dry sand. Roll on 2 wheels for easy movement. EBBA approved. With opaque polypropylene backboard. SAFETY NOTE Portable units must never be left unattended in an upright position, particularly in windy conditions. It is not recommended to leave any portable unit in an upright position outdoors overnight.