Parallax 28502 is a pack of three programmable DC motors with integral driver circuits manufactured by Parallax Inc. They have a power rating of 18V at 2 Amps and are constructed of durable materials for long-term use. They are capable of delivering a wide range of rotational speed from virtually zero to maximum rated speed. Due to their small size and low weight, the 28502 motors are ideal for hobbies and projects, especially robotics and other light-weight applications. The motors come with a preprogrammed controller module, which can be programmed with basic commands to control the motor characteristics such as power, speed, direction, and acceleration. With the use of additional components, such as encoders and Arduino boards, the 28502 motors can be used in more complex applications.