These attractive and practical mugs, or beakers, have a stainless steel lining with a plastic shell, a strong handle, a slip-proof rubber base and a tight fitting lid. They are not suitable for dishwasher and should not be totally immersed. For long-lasting cold or warm drinks in the outdoors, at work or camping. Ø 9 cm outside (without handle) x H 12,3 cm, 280 g inside stainless steel, outside plastic