Taper balloons come in 13-inch, 27-inch, and 38-inch and a variety of vibrant colors.
The 13-inch balloon is an airfill requiring heat sealing because they do not have self-sealing valves. The 27-inch and 38-inch taper balloons have self-sealing valves.
According to the manufacturer, the 13-inch and 27-inch taper balloons are for air-fill use only. A 38-inch taper or swirl taper balloon can be inflated with helium.