Made of high-grade aluminum foil composite material, bright, durable and of good quality. Quality self-sealing inflatable cheerleading sticks bang together to make noise, idea for having fun on parties. Inflatable noisemakers stick can be filled with helium to float or filled with air to attach to any surface, the balloons have self sealing valves. Once inflated the balloon will stay up for over a week. Idea to make noise on parties or sports events. Thunder sticks can make the atmosphere more intense. Great to cheer on your star player or show your team spirit. Bang two sticks together to make noise! These are perfect noisemakers for sporting events, parties, parades, rallies, promotion and other special events. (1 pair contains 1 inflatable straw)