Features 1、Easy Climbing: The track of this simulation model is flexible and firm, with good grip, and easy to climb at 45° 2、Beech Material: Made of original ecological wood, safe and environmentally friendly, easy to assemble, suitable for children 3、Lay Foundations: The scientific knowledge in small production can lay the foundations for future inventions and learning of mathematics, physics and chemistry 4、Cultivating Ability: Improve children innovative awareness and ability, let children win at the starting line, and become more competitive in society 5、Improve Performance: Cultivate children interest in learning and desire for knowledge, which helps to improve children academic performance 6、Pleasant Experience: This simulation model creates enjoyable learning experience, the perfect substitute for video games Specification Item Type: Tank Toy Material: Beech Uses: Handmade, Puzzle Teaching Paint Material: Wood Without Paint Wooden Building Block Type: Building Blocks Power Supply: 1.5V AA Dry Battery x 2 (Delivery without battery) Package List 8 x Wheel 1 x User Manual 1 x Screwdriver 2 x Wooden Board 4 x Shaft Rod 2 x Crawler Belt 1 x Battery Box 1 x Accessories Package 1 x Motor Base 1 x Motor