The Arizer frosted glass balloon mouthpiece is designed to be compatible with the All-Glass Mini Whip and the Original Mini-Whip. With this, you can connect the bag to the glass mouthpiece with your Arizer Extreme Q. When you buy the product, the set includes the glass mouthpiece along with the O-rings. The O-rings will be used to secure the bags to the piece. The Arizer frosted glass balloon mouthpiece is used to replace the original unit if the latter is already cracked, discolored or stinky. This kit doesn’t include the Mini-Whip or the replacement balloons, however, since those are sold separately.