Foil Balloons Foil Balloons are very easy to inflate using a straw provided with the kit or any drinking straw. It supports both normal air and helium which can be filled be going to the nearest helium filling store if you want to use floating balloons for your decors. Foil Balloons are self-sealing; it will be sealed automatically once to finished filling the air. Please note that you should only fill 80-85% of the total capacity for long life of foil balloons as it may get blast if over filled. These are reusable balloons, you just have to insert the straw into the valve and squeeze the air out of the balloon lightly and keep it folded for your next party decoration. Also keep it away from direct sunlight and sharp objects or surfaces. These Balloons are made up of high quality & biodegradable aluminum foil. Please Note: Colors may differ a bit as shown in the pictures as it depends on the lighting conditions ate the current place. Latex Balloons Latex balloons in the kit provided are made up of high quality, non-toxic natural latex and is least harmful to people and kids. These balloons are perfect for any kind of party decorations like birthday parties, anniversary parties decors, baby showers, etc. Latex Balloons can be filled with air & helium gas both as required. You may get the balloons filled with helium gas from a nearest helium filling stores to get the floating balloons. We do not recommend hydrogen gas to be filled for floating balloons due to its highly flammable nature. You may blow up to 80-85% of the total balloon capacity as mentioned on the kit, a 10-inch balloon can be inflated till 9.5 inches or last 10 inches to avoid balloon burst. Also keep them away from sharp objects and kids below 3 years.