Connects to Technic Mindstorms EV3 NXT and Bionicle 8 12 20 16 24 36 tooth gears & Clutch gear! (RARE CROWN GEARS!) Manufacturered by LEGO. This genuine LEGO spare part bundle comes in a clear sealed plastic bag. NO LEGO BOX or instructions are included. GET EXACTLY WHAT YOU SEE IN THE PICTURE GUARANTEED! Use to build robotic or any moving LEGO creations!