Roll clay in style with the Cool Roller. Non-stick Cool Roller eliminates the clutter of playing cards. 6" roller is just the right size and weight. Color coded spacers fit into precision milled grooves to produce slabs in standard card thicknesses. A size 3 spacer produces a slab 3 cards thick, size 4 is 4 cards thick, etc. 3T and 5T spacers are designed to roll clay directly onto our Texture Tiles to produce slabs in sizes 3 and 5.