The 30302 Mobile Access Tower Extension Pack 2 can be used to extend the working height of the base pack (30301) from 0.7m (2 ft 4 in) to 1.8m (5 ft 11 in). Easy & quick to assemble. Suitable for trade & light trade use. Pack contains 1 guardrail frame, 4 toe boards, 4 toe board holders, 2 top frames 4 stabilisers