VersaBlock is the all new versatile block with multiple flooring profiles and additional integrated features. The VersaBlock is equipped with 2 different edges making it suitable for flooring as thin as 3.5 mm or as thick as 12 mm or more! The pencil holes can be used for tracing against a wall, the knife notch is used for trimming the tongues off of planks, and the ruler measures up for a quick check during installation.