A.Description Brand New Can be used repeatedly, no extra knot, automatic sealing; rechargeable nitrogen, hydrogen (which can be floating). Decoration: Wedding, birthday parties, Christmas Feasts, children playing, the game rewards, etc. B.Special Note: 1. Must be inflated slowly, can pump to 90%, then use a straw to blow, to control volume, in order to avoid bursting. In case of two layers of aluminum foil sticky encounter, it's sure to stop inflation. Pull two layers of aluminum foil gently and then inflate, otherwise you will damage the balloon. 2. Sharp objects / dirty ground / direct sunlight and excessive extrusion are easy to damage the ball's skin. 3. When folding the aluminum foil ball, you have to make it as flat as possible and keep it dry. 4. Due to thermal expansion and contraction of gas or the temperature' s change, the foil balloons should be appropriate to the filling gas, in order to avoid bursting. General helium / hydrogen can only float after 6-14 hours, so helium, hydrogen must be filled in using the day (Pay attention to safety)! C.Item Specifics: Shape: boy/girl Type: Foil Balloon Material: Foil Diameter Boy : 30*71cm/11.8*27.95'', Girl: 30*73cm/11.8*28.74'' Color: Mixed-color Occasion Wedding, Birthday Parties Baby shower etc (1cm=0.39inches) D.Package Included: 1*connection letter balloon.