Travel mug with a lock 420 ml Royal, by Ambition, in a beautiful turquoise color with golden accents. The mug has a double wall and a stainless steel insert, which provides greater protection against loss of the correct temperature of the drink. A special locking mechanism protects against accidental opening of the cup, and the contoured mouthpiece makes drinking easier. The mug is great for both work and travel. It can be used for both cold and hot drinks. The elegant line of Royal thermal mugs is available in four fantastic colors.