The Probst 7572521001A SurfaceSAVER™ Roller Plate Attachment for Roller Compactor fits onto almost any existing compactor for greater efficiency. The design of this attachment features rollers which dampen compaction amplitude, consolidating bedding sand or chip through higher frequency vibration. This prevents the slabs from shifting and edges from chipping. The pavement is also protected from scratches caused by scraping joint sand across the surface.