Buzzzzzzz. This is a LEGO remake of a circuit board. Leaf pieces were used to impose the circuit wiring in LEGO. It includes 490 parts. These parts include a 16x16 baseplate part, grille tile parts, ingot parts, a 16 tooth gear part with clutch on both sides, hinge base parts, 1 by 1 tile round parts, gear rack parts, 1 by 2 curved slope parts, a 2 by 2 air scoop engine part (its name on Bricklink studio is 'Vehicle', air scoop engine top 2 x 2" and has a price of approximately 0.84 USD if currently bought in dark grey on Bricklink (according to Bricklink studio).