40 BESTWHIP (BW10) 8.5g Nitrous Oxide N2O Whipped Cream Chargers - 4 boxes of 10 8.5 g Nitrous Oxide N2O in the standard 8g size! Super-charged with 8.5g pure N2O for standard 8g price!! Laser sealed stainless steel chargers for longest shelf life! New in Box. Guaranteed quality! FAST Shipping! Ships next business day from FL or CA via UPS Ground!