81 Piece Funny Bricks Gear Building Toy Set - Interlocking Learning Blocks - Motorized Spinning Gears (DR3) Bundle Deals offers these interlocking building blocks and gear wheels of construction puzzle play set includes 81 various pieces. A motorized spinning gears foster creativity, learning skills, and encourage learning of mechanics and engineering in young children, boys and girls. Uses 1 AA Size battery not included. The fun shaped jigsaw puzzle pieces interlock building blocks, motorized spinning gears construction set will help your children use their brain and develop important problem-solving skills, liner logic, and motor skills! Styles may vary slightly from illustrated images. Our jigsaw puzzle type construction blocks game set feature a colorful and vibrant choice of building set, with tons of possibilities! Your toddler will develop creative skills creating their own themes and worlds out of the 8i interchangeable interlocking building blocks and gear puzzle pieces! A playful way to build your child's creative skills and imagination. Spend quality time with your preschooler building tracks and playing with this interactive toy. Adult supervision is recommended. For ages 3 years and over. Hands-on construction set with spinning gears encourages an early interest in engineering and technology.