To enable this, create a smart collection named All Products and set the condition to 'Product price is greater than 0'. You can create a collection through the 'Collections' menu in Shopify admin. Or you can turn this section off through theme settings.
All foils in this category are not inflated and need to be helium-filled.
Flying times vary depending on temperature and atmospheric conditions, however should float for at least 5-7 days when filled correctly.