Hours and hours of giant-bubble fun! Just add washing-up liquid! What it contains: 1 sets of wands and ropes (so 1 person can bubble at once); 2 sachets of magical giant bubble powder to make 5 liters of giant-bubblemix (just add Fairy washing-up liquid); Instructions. You need to add: 400ml Fairy washing-up liquid (other brands don't work as well or at all; must not be lemon-scented), water, a clean container like bucket or bowl.