Roller assembly

A roller assembly includes a roller shaft, a roller base and at least one roller. The roller shaft defines at least one clipping slot. The roller shaft passes rearward through the roller base to rotatably mount the roller base to the roller shaft. An inside of the roller base extends forward to form an elastic arm. A free end of the elastic arm projects beyond a front surface of the roller base. The free end of the elastic arm defines a hook portion hooked in the clipping slot to restrain the roller base on the roller shaft. The roller is set around the roller base. When the roller assembly is disassembled, press down upon the free end of the elastic arm to make the hook portion project out of the clipping slot, so that the roller base together with the rollers is disassembled from the roller shaft.