Colored Hydro-Bottle Wide Mouth Straw Lid Fits Hydroflask, 50/50 and Other 63mm Widemouth Bottles, including 12 oz, 16 oz, 18 oz, 20 oz, 32 oz , 40 oz and 64 oz. Fits all wide mouth flasks. Fits 18, 32, 40 and 64 oz bottles. All Lids Come With TWO straws.