Crafted with a chic design, our Osun 6.7oz coffee mugs are the compact counterpart to our Osun 10oz mugs, maintaining an exquisite appearance. Constructed with non-toxic stoneware, Gharyan beverage collection boasts a gentle edge and a velvety interior and exterior surface. Specifications: 20 cl / 6.7 oz Pack of 4 Food safe Microwave and dishwasher safe Handmade Material: Enameled stoneware Completely free of toxic heavy metals (like cadmium and lead) Disclaimer: Our products are handmade by ceramists, one at the time. As such, they're all unique in their own ways and you may spot a small finger print on the base, or the imprint of the grid onto which they were placed when fired. Please note that these are the marks of true craftsmanship. Our stoneware mugs may get hotter than usual. Packaging marks may be spotted and your flatware can leave superficial marks. Yet, they can both be easily taken off. Check how in our Use & Care @ www.gharyan.ca