399 piece stem simple machines base set homeschool educational building blocks lego style compatible __IMPORT34 This versatile hub comes with

This versatile hub comes with a dedicated SD and TF card reader slot

915MHz ELRS

7V 150mAh lipo battery (built-in)

Picture a device that is easily portable

399 piece stem simple machines base set homeschool educational building blocks lego style compatible __IMPORT34 This versatile hub comes withA 399 piece set designed for hands on STEM and simple mechanism learning at home or in the classroom. Self locking ABS bricks give you sturdy, reliable connections so models stay together while you experiment and learn. Parts are compatible with standard small building bricks, letting you mix and match with existing collections for more creative options. Easy to assemble and disassemble ideal for DIY projects, model builds and exploring mechanical