Roto-Wedge Spacer, The Ultimate Solution FOR MASONRY, TILE, STONE AND MORE! (Small) The Roto-Wedge Spacer is the perfect spacing solution for tile, stone, masonry and more! Spacing thickness: RWSB75: 1/64(.046.3mm), RWLB25: 1/167/8 (1.622.2mm) Package for the small Roto-Wedges contain 75, and the large Roto-Wedge package contains 25 Fast, efficient, increases productivity and provides more accuracy than basic wedges, shims, wood or The innovative design prevents the installer from hitting the wall, giving you full use of the wedge