This is a building toy and kids will be building their very own STEM Educational battery-operated Technical Tank. This educational toy helps to develop cognitive skills, gross motor skills and creative play. Materials include building blocks compatible to Lego , simple motor, battery holder and step-by-step instructions with pictorial manual included in the box. Kids can make their own version of the tank with the building blocks given or just follow the manual given. Great way to introduce how things work to your kids and fun as an activity for family bonding or for rainy days. Super cool educational toy for age appropriate 8 years and up. Actual product size Length 13.2 cm by Height 17.5 cm by Width 12 cm.