The Mason Cash Reactive mugs are made from durable stoneware, making them practical for everyday use. Produced using a reactive glaze finish, the mug has a timeless sophistication that will look stylish. Due to the unique artisan feel of the reactive glaze, each piece will be individual in colour and pattern.|The blue reactive mug has a capacity of 400ml, it is ideal for tea, coffee and hot chocolate, and is dishwasher and microwave safe.