UNLIMITED FUN FOR EVERYONE: The Uzzle Stack Royale comes with 32 polished wooden blocks, 160 cards, & 4 difficulty levels. Levels 1-2 are great for young kids and levels 3-4 are more challenging for adult players. Play individually or with up to 4 players. Play with unlimited players if you get extra games. Stack Royale can be learned in under 10 minutes and enjoyed time and time again. Sharp eyes, fast hands, and quick minds prevail in this fun-filled structure building frenzy! BOOSTS PROBLEM SOLVING & THINKING SKILLS FOR KIDS: You will need to have sharp eyes, quick thinking ability, strong observation power, and fast hand speed all at the same time. The Uzzle Stack Royale is great for enhancing problem-solving and many cognitive skills in children. A PERFECT GIFT: The Uzzle Stack Royale is the perfect gift for Christmas, Easter, birthday gifts, back to school, and many other occasions! It's also a great choice for travel games.