Hammond HWCHAS Series Walnut Chassis with Aluminium Top Panels – Hammond HWCHAS1710AL, Attractively styled, rugged walnut box, 432 x 254 x 76mm, with 2mm thick aluminium top panels with natural finish. Optional bottom plates are available separately. Hammond HWCHAS1710AL Walnut Chassis Alu Top Natural 432 x 254 x 76 Wood/natural