1.96" x 1.8" (5cm x 4.6cm) Holographic Green Mechbox Switch Sticker.
The switch is green with a blue stem. The product image includes the "rainbow" affect made by the holographic finish.
In the photos I have compared it to the size of a switch, and to the size of the two other stickers I sell in this design. You will of course just receive the 2" sticker (the smallest one).