The Tandem (R) Officials' Starter Kit is ideal for any volleyball referee. This kit comes with a whistle, lanyard, penalty cards, net setter and linesman flags. These tools will enable you to referee volleyball games of all skill levels. FEATURES: All of the necessary referee items that are needed in one convenient kit Includes: penalty cards, net setter, whistle, lanyard and linesman flags Manufacturer's warranty: 1-year limited For additional information relating to the Manufacturer's Warranty, please contact 1-800-766-1098.