Once the caps are off, you can slide the roller off the bar towards the right side. WARNING: Do not remove cable ribbon cable located on the left hand side. Keep note which is left and right as they are specific to each side.
Afterwards, pull both caps up and remove them.
Push them inwards and you’ll hear them click. Located on both ends of the bar are two black caps. Please disconnect your RollerMouse Red from any power source before proceeding with the following instructions. Productivity Analysis of 6 Popular Ergonomic Mouse Designs.