Why not decorating your next party with these pretty mylar balloons? Can be hung on with string or attached with a tape to walls / windows / ceilings. Suitable for multiple occasions which needs balloons decor. Especially for Small showers Brthdays weddings graduations proms anniversaries and any other celebrations. How to inflate the balloons: find out the inflatable mouth in the middle of the transparent sheet. insert a straw into the inflatable mouth. inflate the balloon slowly and gently till 80% full. pinch its mouth tightly for a while waiting for self-sealing. Notice: the balloon is shipped uninflated. be careful when opening the packet don't touch with anything sharp. dimension is measured by hand please allow for a certain amount of differ. colors might vary slightly due to different calibration and individual monitors.