Durable, safe construction: made from high-quality plastic and premium materials for long-lasting, non-toxic drinking. Built to withstand play and repeated use so parents can trust safety and durability. Fun, temperature-activated color change: pour ice water, cold drinks, iced coffee or juice and watch the mug change colour. The lower the drink temperature, the more pronounced the effect. Tip: the cups begin to change colour when the temperature drops below 59°F (15°C), making the effect especially noticeable with very cold drinks. Practical reusable straw system: each cup includes a lightweight, reusable straw that’s attached with accessories to reduce loss. Simple to use and convenient for everyday drinking. Spill-resistant lid and straw cap: the straw-and-lid combination locks in place for secure handling and fewer spills. The straw also has a protective cap for extra hygiene and leak prevention, so kids can sip with less mess. Clear compatibility and performance: designed specifically for cold beverages—ice water, juices, iced coffee and other chilled drinks produce the best colour-change results. Lightweight construction makes the cups easy to carry and suitable for children. Use scenarios: Birthday parties and playdates: colorful, durable cups that capture kids’ attention and reduce spills while serving cold drinks. School, picnics or travel: lightweight and spill-resistant for packed lunches and outdoor activities; the reusable straw helps cut disposable waste. Family gatherings and events: consistent, safe option for serving chilled beverages to children and guests while adding a playful color-changing element. What makes it stand out: Reliable safety and durability from quality materials Visible, temperature-dependent color change for a playful, functional effect Reusable straw plus spill-proof lid and straw cap for cleaner, simpler use Note: color-change effect is temperature dependent and activates below 59°F (15°C).