Unique Twist cup without Lid

 The Cup are made of environmentally friendly material, and the silicone film on the cups is of German origin, safe for use in the refrigerator and microwave oven.Counterclockwise rotation 2/3 turn, the arrow aligned with the closure,The silicone membrane at the mouth of the cup is fixed to a rotatable ring that connects to the body of the cup, twisting and sealing with the rotation of the ring.no need to worry about spills or leaks.