This is the Single compressor Majiloon. This unit is great for birthday party and occasional use when twisting. If you are a pro twister, performing line work, or many gigs then you need the Majiloon Double! That being said if you really are an occasional twister the single will work great. All pumps come with everything you need to start: The Pump, pouch, reel, battery, and charger. If you want to inflate for more than three hours you will need an additional battery. The single weighs 5.9 pounds.