Sure Grip - Non Spill Cup

This polycarbonate mug is stackable and designed with deep grooves for a comfortable and non-slip grip. It is suitable for all ages and can be used with both hot and cold liquids. The patented valve in the lid prevents spills and only a small amount of liquid may escape before the vacuum seals off the main flow. The mug also features an angled spout for easy use and includes a 100ml and 200ml measure guide on the outside. It is both microwave and dishwasher safe and comes in a variety of colors. The optional lid changes color when the contents reach a temperature of 50 degrees Celsius or higher.