This chassis gives you everything you need to build your own differential-drive 3pi+ robot based on you own choice of Micro Metal Gearmotors and electronics. Motors are deliberately not included with the kit so that you can pick your own to customized the performance of your robot.

The kit includes the following parts:

• 3pi+ chassis, with integrated 4AAA battery holder and ball caster
• 3pi+ bumper skirt
• two 3pi+ motor clips
• two 327 mm Pololu wheel hubs and silicone tires
• four single AAA battery contacts
• two double AAA battery contacts
• 1/2?-diameter plastic ball