12PCS HEART BALLOONS:Package include 4pcs black heart foil balloons,4pcs hot pink foil balloons,4pcs pink heart foil balloons,1pc straw.Large enough to help you better decorate your party. MATERIAL:Heart shaped balloons are made of good quality aluminum film,non-toxic,tasteless and colorless,can be automatically sealed after inflation to avoid air leakage,reusable,great for party decorations. EASY USE:Our heart shaped foil balloons are very easy to inflate,the straw inside the package helps you to inflate the balloon,the balloon can be filled with air and helium,after filling the balloon,you can pinch your finger to the position of the inflatable mouth to seal it automatically. WIDELY APPLICATION:This pink black heart balloon can be used for a variety of occasions,such as birthday,anniversary,Valentine's Day,Mother's Day,baby shower,gender reveal,weddings,engagement,bridal shower,marriage proposals and other parties,can also be used as a photo background,etc.Make a deep impression on the party guests. NOTE:Due to the product batch problem,it may lead to some color difference of the balloon,please take the received object as the standard.Also,please do not over-inflate the aluminum film balloon or rub it against sharp objects to avoid explosion.