Fixed Height Desks or Workstations can be easily raised using Desk Riser Block DR1 that raise each foot or leg by 1" (25mm). Supplied in Sets of 4, the Desk Riser Blocks are interlocking so can be stacked up to 3 high giving 1", 2" or 3" (25mm, 50mm, or 75mm) height so you can select the number of sets required. Circular in shape with diameter of 90mm there are inset recesses into the top surface to accept various size levelling feet and is also designed to accept straight cantilever desk legs. Made from tough, durable recycled plastic in black.