Premium Montessori wooden logical thinking game designed for ages 3–6 to build problem-solving, logical thinking, and hand-eye coordination through hands-on key and puzzle play. Available in 2 color options. Key Features Logic unlocking mechanism — children solve puzzles by trying different key combinations Durable wood construction — impact and wear-resistant for long-term play CE certified — European safety certified, safe for ages 3+ Compact size — 13.3 x 15 x 4cm, easy to store and travel with Solo or parent-child play — great for independent challenges or bonding time Developmental Benefits Builds logical thinking, problem-solving, hand-eye coordination, patience, concentration, and persistence through hands-on key and puzzle play. Ways to Play Try different key combinations to unlock the puzzle Challenge yourself to solve it faster each time Play together with a parent for guided problem-solving Specifications Material: WoodAge: 3–6 yearsSize: 13.3 x 15 x 4cm | Weight: 0.29kgSafety: CE certified, Europe approved