The ROKR DIY Infinite Cycle Marble Run Link Pack LG01 is a limited edition mechanical building toy set designed for ages 14 and up. This educational product from ROKR comes in a box packaging and features a construction theme. With its unique design and brand, this set offers an engaging and creative experience for builders looking to construct intricate marble runs with endless possibilities. Perfect for those interested in hands-on learning and problem-solving, this set provides hours of entertainment and satisfaction for both novice and experienced builders.