Swissmar MP-002 Sesame Granite Mortar and Pestle Made of premium quality polished G5 Granite; black with white speckles Mortar is uniquely designed with dual-sided concave interiors for multiple grinding Mortar is heavy, well balanced and suitable for rigorous pounding and grinding Two- tone pestle is designed to allow both sides to grind and pound Natural non-porous quality; allows for extracting the oils from herbs and spices without being absorbed into the stone