Expand your child's creativity and critical thinking skills with the HABA 200 Piece Marble Run Bix Box Construction Set! This STEM educational toy is perfect for 4 year olds and up who love building toys. With this marble maze set, your little one will have endless entertainment as they mix and match with our other Hubelino marble run sets, creating exciting marble run possibilities. Crafted from high-quality materials, this marble run expansion set is durable and safe for hours of educational fun. Kids will enjoy the thrill of watching marbles race through the maze. This set is a top gift for 4 year old boys and girls, making it the perfect present for birthdays and holidays. Let your child's imagination run wild as they explore the world of engineering and construction with this marble run set. Whether they're building a simple track or a complex maze, this set provides endless building fun for kids ages 4-8. Foster creativity in your little one and watch as they develop their problem-solving skills while having a blast. With 200 pieces included in this expansion set, your child can customize their marble run to suit their preferences. Mix and match run elements to create new challenges and obstacles for the marbles to navigate. This set is designed to provide hours of entertainment and educational value for your child, making it a must-have addition to their toy collection. Bring out the architect in your child with the HABA 200 Piece Marble Run Expansion Set - the perfect STEM toy for 5 year old boys and girls and building enthusiasts aged 4 and up. Get ready for hours of building fun and excitement with this high-quality and safe marble run set.