Simple Machines Set contains enough pieces to build a lever, pulley, inclined plane, wheel and axle, and wedge – all at the same time. Students can construct, examine, and explain simple machines to develop a deeper understanding of how they work.
The Babyhawk from Emax is a micro brushless quadcopter this is tons of fun to fly. It runs on an EMAX Femto micro F3 flight controller with STM32F303 CPU is ideal for micro brushless FPV racing