Ashton ACJ90 Cajon BirchFull size birch cajon for percussionists. Birch is an ideal cajon construction wood, as it projects louder and more powerful sounds to highlight your percussion and gives a higher dynamic sound to play with. Adjustable string wires and front panel for a snare like sound. The ACJ90 from Ashton is built to last and sounds huge. Birch full size cajon Rubber feet for stability Adjustable string wires and front panel Dual soundhole for a more dynamic sound