Our 10x Super Concentrate mix offers the best value for money of any of our mixes, it is convenient as you just need to add water, and by making it concentrate we're cutting shipping costs and reducing carbon in shipping! 100 mL = Makes 1 L Super Strong Solution. We believe that no solution comes close to ours. The size, length, longevity and colors are excellent! These are highly engineered with years of research in every bottle. Why we're the Best? We're much more eco-friendly than other makers as our nontoxic bubble mix is fully biodegradable and contains no phosphates so it's better for the environment and for children!Details:100 mL (makes 1 L of bubble solution)RefillFor ages 3 and up