Ages 4+. The bubble you can catch! Catch and stack'em! Catch-A-Bubble is a breakthrough in bubble technology. These bubbles magically harden when they come in contact with air making them stronger and longer lasting! For best results, blow the bubbles slightly upwards into the air and let them harden for a few seconds before touching them. Then, try catching and stacking them to form a pile of bubbles! They're almost unbreakable! They're the longest lasting bubbles ever! Products and colors may vary. Conforms to ASMT F963-96. Made in Taiwan.