The Mini Tinker Kit is designed for kids ages 6-10 to be used as a basic tool set to build tinker robots. These robots (4-total) simply need motors and batteries to move! Robot builders will use their creativity and dexterity skills to build unique bots of their own while learning about circuits and mechanical concepts. Not all household items (paper plates, paper bowls, etc.) shown in pictures are included.  Instead kids are encouraged to use recyclable items around the house and re-purpose them as robot parts!   Kit Contents: * 1 x 130 Size DC Motor (With flying lead male pins) * 1 x 130 Size DC Motor (Vibration) * 1 x Mini Vibration Motor * 1 x 130 Motor Coupling * 1 x Coincell Battery (CR2032) * 3 x AA Battery * 1 x AA Battery Holder (Socket Connectors) * 2 x AA Battery Holder (with Lead Wires) * 1 x 1.