Overview Reviews Product Description The HXDBII clamp is used to horizontally set two tubes at the same height - as in a double-bass configuration. Settings at various angles are possible when used with the clamp gear joint. Product Videos Custom Field Product Reviews Write a Review Write a Review × YAMAHA Hexrackii 3 Way Tube Clamp Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *