Fashioned from natural stone, these meticulously shaped and polished basalt stones offer a remarkably smooth surface. Beyond their exceptional heat retention, these natural stones present practical benefits. With fewer crevices, they are easier to clean and minimize the risk of harboring harmful pathogens, making them a perfect choice for hot massages. Experience the harmonious blend of natural beauty, effective heat distribution, and hygienic convenience with these exquisite natural stone massage tools.