Quantity:only 1 pcsSize:almost 16 inch about (before inflation),different letter,number with little differnt size.After inflate will be little smaller than that.This balloon cannot be fly even inflation by helium, it is usally affixed on the wall.It's ideal decoration for wedding, party, birthday, anniversary, shopping mall and promotions etc.The balloon will come flat and need inflating after you receive it.The balloon sold without Helium.This balloon is used to decorate, couldn't fly even inflate helium.Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you.Please pay attention to the Different color abd Different shapes and Different Sizes when you order.