The Indy concentrate makes seven litres of Indy's incredible bubble solution. Ideal for making giant bubbles as well as most advanced bubble tricks. This is a set of six giant bottles of the world famous Indy Bubble Solution - in concentrate form! if you're planning on making lots and lots of bubbles, these 1 litre (1000ml) bottles of Giant Bubble concentrate will make life much easier. Simply mix one part concentrate to six parts water in a container of your choice and slowly mix together. Ideal for working Bubbleologists or Bubble Events and parties. Each bottle can make an incredible seven (7) litres of the world famous bubble solution. No need to carry around litres of ready-made solution when you can create your own as needed.Case contains six bottles.