Gambler Sevens Pro Competitor 2.1mm designed for the post 2016 era with a perfect harmony of light tack and mechanical spin.With a quick settle in period, there are optimal playing attributes after a very short period.Very light!! This is The lightest uncut sheet of 2.1mm sponged rubber we have ever carried (51g+-3). Has deep Power for a feather weight rubber. Stacked ICMS large pore sponge fantastic with or without oil based tuners. This is an advanced high speed/spin rubber for meant for competition play. SET CONTAINS 2 RUBBERS, 1 RED AND 1 BLACK