Set of 5 colorful Gonggi stones, with a plastic case. - Colors: Blue, Green, Yellow, Pink, Purple - Quantity: Set of 5 x 2 - Case: Plastic case included "Gonggi" (공기) is a traditional Korean game played with five small stones (or colorful pieces). One piece is tossed into the air, and the player must pick up other stones before catching the falling one. It's a game that tests dexterity, similar to Japanese "Otedama" or "Ojigi". It's also popular as an educational toy that cultivates concentration and reflexes. It was featured in Season 2 of "Squid Game," making it a trending topic. Thank you for looking.