4 pcs. Bitz mugs with hank are made of sturdy stoneware with matte exterior in the color Wood and glossy colored glaze on the inside. The mug is 10 cm high and holds 30 cl. Enjoy an intense cup of coffee, tea or something third of the great mugs and mix with the other amazing colors in the series. The stoneware can withstand machine washing, microwave, freezes down to minus 18 degrees and oven up to 220 degrees.