BALSA WOOD block approx size 70mm x 150mm x 2400mm) varying sizes NEW RRP $140
For more info search balsa riley. BALSA WOOD 8 sheets 15" x 4" x 1/16" (375mm x 100mm x 1.5mm) NEW (#141529613278). There is another sizing available - anything up to 170mmx95mmx3000mm if required. A good price for the wood.