MacGregor introduces rubber-covered footballs with nylon windings and butyl bladder construction. These footballs feature pebble grain exterior with raised laces and stripes. We have the ultimate color management system with SIX colors! Use our system and provide each group with its own unique ball color! No more arguments about whose ball is left on the field or whose turn it is to play. If its your color, its your ball. All prism packs include one of each color: Blue, Green, Orange, Purple, Red and Yellow.