Championship Mercury K66 42” Replacement Premium Quality Pool Table Cushion Rubber, Canvas Backed. K66 profile is the most common for home and commercial slate tables. Designed for 6-8 ft pool tables (for 6-7ft tables these rubber cushions need to be cut to fit). Championship Billiard Cushion Rubber – Setting the Standard in Performance. As a long-standing leader in the billiard industry, Championship has continually advanced the development of high-performance cushion rubber through rigorous research and innovation. In collaboration with top professional players and expert polymer chemists, Championship has engineered a line of billiard cushions that redefine consistency and accuracy. To meet its strict quality standards, Championship utilizes precision-engineered tooling and a state-of-the-art manufacturing facility. Each production run undergoes thorough testing for durometer, dimensional accuracy, rebound, specific gravity, and elongation to ensure superior performance and durability. Despite its exceptional quality, Championship cushion rubber remains competitively priced — offering unmatched value compared to lower-quality imports. These cushions are trusted throughout the industry for their reliability, responsiveness, and consistent play. At Championship, delivering premium billiard products at accessible prices is a core commitment — and their cushion line is a true reflection of that promise.