Similar to the AA3364, this has two sets of two moulded blocks linked together for use with a bed. The blocks have a broad base for stability, and are adjustable in height, using the inserts supplied. Once adjusted, the units are secured with a wing nut. Height raise 64 to 121mm (21/2 to 43/4') in 19mm (3/4') increments. Maximum width of leg 70mm (23/4') diameter. Overall width adjustment 965 to 1422mm (38 to 56'). Weight 3.4kg.