The Teko RWK-2.38 is a part of an open source robotic arm platform developed by Teko. It is made up of three components: the RWK-2.38 joint, the RWK-2.38 base, and the RWK-2.38 motor. The joint is made of an aluminum profile with a built-in bearing system, the base is a three-axis aluminum profile with two stepper motors, and the motor is a servo motor. Together, these components make up a robust, durable robot arm that can be used for a variety of applications, including industrial manufacturing, construction, and even as a remote home assistant. The Teko RWK-2.38 is simple to setup and operate, making it a great starting point for anyone looking to get into robotics.