Size Box on Friv 2020 games is a box-based puzzle game. The object of the game is to place the box on the appropriate box spot. However, the spot where the box must be placed is always of a different size than the box, and the box is always smaller than the spot. You must tap and hold the screen in order for the box to grow. When you think the box is big enough, release it. If the box is less or larger than the box spot, the game will terminate and you will have to restart from the beginning.