It's a Baby Boy Foil Balloon

Beautiful, brightly colored, printed on both sides and easily closed through its automatic valve, foil balloons amazingly decorates the party. Can be inflated several times with Helium (if you want them to float), or air (using a compressor or manual pump). 
You will find practical helium cylinders, handy pumps, ribbons... on ours "Balloons Accessories" section.
Note: Air inflating with manual pump requires to be carefully done in order not to damage the automatic valve or pop the balloon by excessively inflating. When inflated with air, the balloon doesn't float.