Professional plus model; The choice of the innovative chef and professional barista; Made out of fully anodized head, bottle, and stainless steel components * Acid resistant and odor neutral * You"ll have fluffy whipped cream for up to two weeks (refrigerated) without the use of preservatives or stabilizers; You can make upscale whipped cream, desserts, and sauces faster and easier than ever before, all at the touch of a button * N2O (nitrous oxide) charger required (sold separately)