Race, sort, and solve your way through a colorful brain-teasing challenge! Color Stack is a fast-paced puzzle game that can be played solo or head-to-head. Set up the rings to match a challenge card, then move one ring at a time until every column is sorted by color. Simple to learn and surprisingly tricky to master, it is a fun pick for family game nights, friendly competitions, and puzzle lovers.Why We Love It Combines logic, visual thinking, and speed Works for independent play or two-player races Includes easy and hard challenges to keep play fresh Quick rounds make it easy to play again and again Good to Know Ages 8+ For 1–2 players Includes 2 stack racks, 80 rings, 50 challenge cards, and instructions No batteries required WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.