Anagram 42 inch curve foil balloon silver is supplied deflated for ease of packaging and can be filled with helium once inflated avoid exposure to extreme temperatures a 1m length of coloured ribbon or a coil of white ribbon can be attached to the neck of each balloon sold separately which surely makes these shaped balloons beautifull perfect for any wedding anniversary birthday or other party and what else you can mix with your favourite shapes colours to create your own custom balloon b