Abstract: The Core Trike is a device that provides for rolling instability when engaged with the hands or feet to enhance exercise. The Core Trike offers a “T” shaped platform that has footholds and handles which can be engaged and disengaged easily, thus making it ideal for mixing into exercise circuits. The Core Trike also includes at least one swiveling wheel which allows the device to rapidly course correct and follow the user's movement with ease and accuracy. The “T” shape allows for the wheels to be attached in a triangular pattern. The bottom of the “T” is the front of the Core Trike while being used with the feet, which is the primary use. Since the bottom of the “T” is narrow, it fits between the user's legs with minimal potential for unwanted contact with the user's legs, while providing an attachment point for a swiveling wheel.