Size:5-16 InchMaterial: Aluminum Foil and LatexWeight:300gPackage Included: 139 x Balloons ,1 x Rope ,1 x Balloon Chain ,1 x Balloon ViscoseFeatures:1 Party balloons are made with strong natural rubber latex and excellent quality aluminum foils ,it is non-toxic and not easy to pop,safe to use around children 2 The balloons are perfect for graduations, engagements, weddings, anniversaries, corporate events, photo shoots and so on Decorate any party indoor or outdoor as a photo booth backdrop and create lasting memories 3 Do not over-fill the metal balloons and avoid sunburn, overheating, sharp objects, and excessive friction strong winds or shots can cause a burst and are recommended for children over 6 years