Thunder Group Marble Grinder, 5-Inch This Marble Grinder (MRGR002) is brought to you by Thunder Group This bowl style marble grinder is also known as amortar and pestle,and is atoolused to crush, grind and mix herbs and recipe ingredients The pestle is a heavy bat-shaped tool, whose end is used for pounding and grinding and the mortar is the bowl and both aremade ofmarble This is a wonderful tool to use to prepare dished where spice is a critical component, such as curries Originated from Taiwan