Eliminate reflection burns and improve laser cutting quality with the Rack Star Table System. TheRack Star Table System sets directly on to the smooth metal engraving bed and creates air space under your material. This air space creates laminar air flow towards the exhaust. The result is less smoke residue from the laser cutting process and improved cut quality. The Rack Star V-Blocks and Risers are repositionable acrylic shapes which sit securely on the pins and position objects of varying sizes in place, level with the laser beam, while the laser is operating. The Rack Star Table V-Blocks and Risers are a great addition to the Rack Star Table System and will help provide improved performance over honeycomb tables that often cause reflection burns on the back side of the material.