I have converted the Growtac hybrid roller stand, the GT-Roller Flex3, into a smart roller by attaching the "GT-eBox" and "GT-ePower-F". The front end swings left, right, forward, and backward, providing a feel similar to riding on the road. The frame is also not completely fixed, making it easier to do a dancing exercise. It is a quick-release specification. The included accessories are everything in the second photo except for the frame sweat guard. I will discount the price for those who can pick it up.