Materials: Plastic Size: 20*22*2.5cm / 7.88"*8.67"*0.99" Color: As shown 1. Classic rope-untying puzzle design, develops logical thinking and hands-on skills, suitable for all ages. 2. Made of eco-friendly wood and cotton rope, with a smooth feel, resistant to breakage. 3. Compact and portable, easy to carry around, perfect for brainstorming during travel, work, or home entertainment. 4. Unique structure with unlockable levels, improving concentration and problem-solving skills. 5. Highly challenging puzzle design, both fun and challenging, making it an ideal gift for friends and family, or for parent-child interaction. Package includes: "Rope Untying Challenge Puzzle toy." Notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data.