Often called whippets or bulbs, nangs generally consist of close to 8 grams of nitrous oxide, also referred to as laughing gasoline. Nang Delivery Melbourne - 269 Elizabeth St, Melbourne VIC 3000 - 0423762821 - nangdeliverymelbourne.com.au Nang Delivery Melbourne - 269 Elizabeth St, Melbourne VIC 3000 - 0423762821 - nangdeliverymelbourne.com.au