KTR class of quality means top playing surface is of a- quality plywood without any joints & marks on playing surface. The quality and appearance of plywood are such that still today no one has able to find substitute for the same plywood in carrom board. This plywood are the best choice of tournament players around the world and in almost all the tournaments of the all india carrom federation and international carrom federation are played on carrom boards with plywood as a playing surface.