Bamboo puzzles that will boggle the brain. Toysmith Bambolblers stimulate the brain and the body with their unique 3D puzzle challenge. Each puzzle comes in a 3 x 3.25-inch box, and all the pieces are made of all-natural, sustainable bamboo. Four assorted puzzle options available. Puzzle difficulty levels vary. These puzzles make great hands-on learning and development tools for improving short-term memory and problem-solving skills, or encouraging fine motor or logic skill development. • Age Grade: 8+ • Product Dimensions/Weight: 3.5 L x 3.6 W x 3.1 H / 0.3 lb • Inner Pack Dimensions/Weight: 10.7 L x 6.9 W x 7.5 H / 3.4 lb • Made In: China • Batteries not required