Material: Natural Wheat Straw, environment-friendly, bring you the enjoyment of health! ?? Design: thumb groove design, the most ergonomic with thumb rest,easy to take and unbreakable. ?? Performance: 30 degree tilt, cup mouth does not touch the table, quickly dry the bottom of the cup, clean and breathable, no bacteria. ?? Technique: using natural wheat straw, starch, PP and other raw materials, hot press molding, present wheat temperament. It is environmental, healthy, no heavy metal, non-toxic and it can be biodegradable. ?? FEAUTER: The top of the cup keeps away from the surface with an angle of 30 degrees, dustproof and germproof. Carefully designed size, the most ergonomic with thumb rest. One Pcs Size: 8 x 8 x 10 cm / 3.15 x 3.15 x 3.94 inch One Pcs Net Weight: 100 g / 3.5 oz Capacity: 350 ml Temperature resistance: Up to 180 degree Celsius ?? Package including: 4 x Coffee Cups