Everyone in the office wants one of these the tetris light is definitive proof that desk lights can be the coolest feature in any room plug in the main block and then start to stack the seven tetriminoes in any tetris wall like combination watching them light up one by one as they make contact with any shape touching the blue base block you can make hundreds of unique lighting combinations with this awesome set of tetris blocks that are shaped and proportioned just like they are in the addic