Solar powered: powered by an integrated solar cell, the wobble figure works in bright environments energy self-sufficient Movement: automatic wobble movement of the middle finger is activated by light exposure Design: provocative middle finger wiggle figure for the desk or windowsill as a humorous decoration Function: responds to movement in the environment with a shaky gesture of the raised finger Areas of use: ideal for bright interiors such as the office or living room, where there is sufficient light for operation