Made of 100% natural black stone and also single stone. Easy to carry and wash in your Kitchen Sink itself. Do not place in dishwasher, for best results hand wash and set out to dry. ' Primarily used for grinding ingredients like wet and dry spices including vegetables, coconut, etc., it helps to make you prepare gastronomic recipes. From the house of traditional artisans of South India, Suitable for Kitchen Use and non-electrical appliance for your Kitchen. Made In India.