The rollers are beveled carved, allowing them to release easily from clay. The Boogie Woogie Long Hand roller also works great on slabs. Simply roll the LHR roller with your hand across the clay to create a beautiful pattern. The ends of the roller are rounded to allow patterns to blend with multiple rolls. 

MKM wood tools are finished with oil to ensure durability over many years of use.  The rollers are easily cleaned with water and a soft toothbrush.  As with all wood tools, don’t let them sit in water for long periods.