Seattle Seahawks Riddell Revolution Pocket Pro. These new little revolution helmets are about the size of the “bubble gum-machine” helmets. However, they are much higher quality. Each helmet has interior padding, detailed team logos, and a plastic shell w/face guard. Approximate dimensions are: 2 1/4″ long x 1 7/8″ wide x 1 5/8″ high. These are the newest edition pocket pros.