Bubble water toys typically contain a mixture of water and liquid soap or detergent. The toys usually consist of a plastic container or wand that is filled with the soap solution, and a mechanism that blows air through the solution to create bubbles.
When the mechanism is activated, the air is forced through a small hole or openings in the plastic container or wand, which creates a thin film of soap solution. The air then stretches the film into a bubble, which is released into the air.
Some bubble water toys may also contain additives such as coloring agents or scents to make the bubbles more colorful or fragrant. It's important to note that the specific ingredients and composition of bubble water toys can vary depending on the brand and type of toy.