A portable, electricity-free way to carbonate anything cold and pourable: water, cold-brew tea, fruit-infused syrups, even a Sauvignon Blanc if you're in that kind of mood. Fill the PET bottle, screw on the sparkling-wand head, twist in one of the included iSi CO₂ chargers, and let the carbonation infuse straight into the bottle. The silicone-lined cap reseals between pours, so the fizz holds for days. From iSi, the Austrian pro-kitchen tool maker. The starter set ships ready to use. Carbonates any cold liquid: water, tea, juice, wine, cocktails 0.95 L PET bottle in a soft silicone sleeve (BPA- and phthalate-free) Silicone-lined screw cap holds fizz between pours Patented sparkling wand carbonates inside the bottle for portability Soft silicone sleeve gives a grippy, modern look in four colorways Includes 1 bottle, 1 head with sparkling wand, and 6 iSi soda chargers Bottle size: 0.95 L, approximately 3-3/4″ × 3-3/4″ × 12″ tall Material: PET bottle, silicone sleeve, stainless-steel head Care: hand wash only with mild soap, air dry between uses No electricity required Made in Austria