The course says you'll only need 7 moves to turn your position into an armor-plated battleship ready for war. This sticker will not provide such defense on what you put it on.

Learn more about Simon Williams and Richard Palliser's course here: https://www.chessable.com/the-iron-english-botvinnik-variation/course/50500/

Size guide

  3X3 4X4 5.5X5.5
Height (inches) 3 4 5 ½
Width (inches) 3 4 5 ½