Battery-powered gear blocks, a DIY gear block set for ages 6 and up. - Product Name: DIY Gear Blocks - Target Age: 6 years and older - Colors: Green, Blue, Red, Pink, Orange - Features: Battery-powered gear blocks Thank you for looking. This was played with by a child, so some parts may be missing, but the main parts are all there. When shipping, I plan to flatten it to A4 size to save on shipping costs. Thank you.