Gold Number 0 (zero) foil balloon.

These letter balloons are a must have for this party season. 
Create a name in balloons and hang from a string as a backdrop. 
This balloon comes with a self sealing valve and a straw for mouth inflation.
Foil / mylar balloon measures 41cm (16 inches) tall when inflated.

Comes unfilled, DIY inflation required.

This size balloon will not float even if inflated with helium.