A traditional hockey puck measures three inches across and one inch high, while the adapted puck for Blind Hockey measures five and a half inches across by one and two-thirds of an inch high. A traditional puck is constructed out of rubber, is solid, and makes no noise. A Blind Hockey puck is constructed out of thin steel, is hollow, and contains ball bearings which rattle around and make noise. The larger size and sound allows blind and partially sighted players to track its location as it moves around the ice, and it is the single most important adaptation that makes ice hockey accessible to athletes who are blind or partially sighted.
