PROKNEE TREADMAN WITH TOOL BOX AND CUT BLOCKQUICK, ACCURATE MEASUREMENTS USE AS A CUTTING GUIDE WHILE TRANSFERRING STAIR GEOMETRY TO RUBBER TREADS ADDITIONALLY USE TO MARK OUT HARDWOODS, TILE, CERAMICS, AND ANY OTHER HARD SURFACE MATERIAL PORTABLE AND LIGHTWEIGHT AT 5 LBS DEPTH ADJUSTMENT FROM 10 TO 13 ADDITIONAL EXTENSION KITS AVAILABLE FOR EXPANDED WIDTHS FROM 22 to 9 ALL WALLPLATES ADJUST TO ALL WALL ANGLES ADDITIONAL BLADE FRIENDLY SELF STORAGE BOX DOUBLES AS EXPANDED HEAVY DUTY CUTTING