A set of four moulded blocks, linked by slotted wooden straps for added security.

The system is clamped in position with two wing nuts, and the height can be adjusted by inserting the spacer blocks supplied.

Height raise 79, 95, or 114mm (3, 3¾, or 4½").

Maximum leg diameter 70mm (2¾").

Overall width adjustment 432 x 330mm (17 x 13").

Weight 2.5kg.

Maximum Load 318kg (50st).