The official NHL game puck design. Your favorite team's logo is silkscreen printed by our special process and the back of the puck features the NHL Shield printed with the same patented heat sensitive ink used in every NHL Game- it turns purple when frozen! Your Official NHL Game Puck design comes in a presentation-worthy acrylic cube ready to be proudly displayed. Inglasco Inc. is the exclusive game puck supplier to all 32 National Hockey League teams. (NHL tracking technology not included within the hockey puck)