Perfect Size:For Your any Party Decoration. Balloons Inflatable diameter about 10 inch size Please do not Over-Inflate. Keep the packing bag. It s a good storage bag. Balloons can be filled with air helium or water. Warning choking hazard： Children under 8 years can choke or suffocate on uninflated or broken balloons. Adult supervision required. Friendly Tips: Inflating balloons with the pump instead of mouth is highly recommended. Keep uninflated balloons from children Discard broken balloons atonce. Please control to inflate balloons within the maximum dimension(10 inch). Keeping it at a shady and cool，slightly closed place will extend the life of the balloon. Avoid close to high temperature Avoid direct sunlight Avoid close to citrus fruits.