The Quarter Bullnose Z Counterform is ideal for cast-in-place concrete countertops where a 1/4 round edge profile is desired. Full Package includes eight - 96" pieces (64 linear feet) and six - 96" backwall pieces (48 linear feet). Half Package includes four - 96" pieces (32 linear feet) and three - 96" backwall pieces (24 linear feet). To use, place 1/2" cement board (Durock or Hardie Backer) on top of the cabinets. The cement board should be cut flush to the edge of the cabinets and held in pl