As a component of Magic Bubble Bangwoolzzang, you can purchase it additionally
While reusing the existing ring and tray. 

How to use

① Place the tray on a flat surface.
② Assemble the circular ring and the handle and put it on the tray.
③ Open the cap off the bottle and slowly pour an appropriate amount of the content into the tray.
④ Fully dip the ring into the solution and lift it up.
⑤ If small bubbles on the surface of the solution formedby the repeated uses
   prevent the ring from fully dipping into the solution and creating quality bubbles,
   blow off to remove the small bubbles from the solution surface and retry.  
⑥ Refill the tray with solution when it lacks, which causes to form more bubbles
   on the solvent surface and prevents from creating quality soap bubbles. 

Cautions is use

1. Do not allow children under 3 to play with
2. Do not eat or swallow
3. Wash with clean water when the skin or the eye is contacted
4. Avoid high temperature or direct sunlight
5. No hazards anticipated from ingestion of a small amount (mouthful) of solution.
   Give a sufficient amount of water or milk to drink for dilution. If unusual symptoms develop, consult a physician for medical treatment.