They are made from rubber but on the sides they have made bumbs so it can move across the ground easy, hope that helps.
no, unless an infraction (foul) has occured, the air hockey puck must remain hands free at all times. - Chow
it is rubber.
no.
you can take the blade out and make it a shoe then you some wheels nail them on and walla you got roller blades or you can buy covers for your skates with wheels and that would work but the easiest...