The Bauer Slivvver Roller Hockey Puck maximizes your hockey equipment with a mastered design. Most hockey sticks are constructed with ice hockey pucks in mind, so the flex and the overall construction are designed to shoot the heavier ice hockey puck. The Slivvver weighs 4.4 oz, making it heavier than the traditional roller hockey pucks and utilising more of the potential that your stick has to offer.