Features ProRubber Basketball features a leather-like realism, which is the hallmark of the ProRubber trademark. The molds and colors for this limited ball group were painstakingly designed, so that we were able to virtually duplicate the look of their pig hide and cowhide equivalents. In fact, it may only be after one is picked up that you will be able to tell the difference. The 27.5 in. Junior ProRubber basketball is softer, easier to hold, easier to throw, easier to catch and easier to control. Grade Level - Middle School. Color - Tan.