Premium Balloon Accessories Container weights allow you to increase the total weight as needed to hold down helium-filled foil and latex balloons. Empty, they weigh about 30 grams. Fill with water or candy to hold down a bouquet of balloons. Each container weight comes with a unique 'secure loop' ribbon tie for attaching the balloon to the container weight. Dimensions of the container are approximately 3.5" x 3.5".