This pack contains: 3 x Helium Canister with Instructions Information: Volume of 1 canister: (8.8ft³ /.25m³) Float time of a latex balloon: 5-7 hours. Float time of a latex balloon with ULTRA HI-FLOAT (available separately): over 168 hours (1 week!). Float time of a foil balloon: 1 Week + Lightweight, portable and disposable canister. 1 Canister Inflates: 30 x 9" latex balloons or 16 x 11" latex balloons or 12 x 12'' latex balloons or 14 x 18" foil balloons. Please Note: Delivery to UK mainland and Ireland only. Please Note: The canister you receive may differ from the image shown. Please note: This item is non-refundable.