Now you can easily adjust your work height with the new StepRisers for small engraving blocks. Reduce fatigue and increase efficiency, especially under a microscope. Each riser adds 0.5" (12.7mm) to the working height of the GRS MicroBlock. Designed for easy and secure stacking. The standard MicroBlock base fits the molded pocket in each plastic riser, or the riser itself can be used as the base.