* 2 Pack Mug Set* Stoneware * Four tonal glazes* Over, microwave, dishwasher & freezer safe * 10 year guarantee Denby's Studio Blue range has been hand crafted at their factory in the heart of Derbyshire, Engl&. As with all Denby stoneware products each item passes through 20 pairs of skilled hands during its manufacture. The textural Ridged Mugs epitomise the craftsmanship that goes into making each piece of Studio Blue. The set contains 2 mugs making it a great gift for a tea or coffee lover. The Studio Blue mug is perfect for your first morning brew or heating up a lunchtime soup. These mugs are oven, microwave, dishwasher, freezer safe & come with Denby’s 10 Year guarantee.