Adds an exciting new "bang" to parties, carnivals, fundraisers and special events for kids & adults of all ages. Its simple to use, just place a balloon on the tube at the base of the Boom Tower. Pump the detonator, filling the balloon with air. As the pressure rises and the balloon expands, it presses into popping points on the inside of the tower's two arcs, and -- BOOM! -- there's a winner. Includes 72-Balloons per detonator.