DOUBLE-LAYER DESIGN – Set of 4 stackable cups. The double-walled insulated design helps maintain temperature, providing a comfortable grip without hot or cold hands. This innovative design offers improved functionality compared to single-walled cups. ECO-FRIENDLY MATERIAL – Made from high-quality food-grade stainless steel, these cups are durable and safe. They provide a reliable alternative to fragile glass or lower-quality plastic options. The material is sturdy, smooth, and thicker than standard cups, making them ideal for everyday use. VERSATILE & STYLISH – These cups are 100% unbreakable, portable, and suitable for various occasions. They can be used at home or outdoors for picnics, barbecues, camping, and more. Their sleek design fits well in any setting and works great for drinks, desserts, and more. COMPACT & CONVENIENT – Available in two sizes (175ml and 300ml), these cups are lightweight, stackable, and easy to store. Their curved design makes them comfortable to hold and perfect for travel, outdoor activities, or daily use. EASY TO CLEAN – Featuring an electropolished interior and either a mirror or brushed finish on the outside, these cups are rust-resistant and dishwasher safe. NOTE – After using the cups for acidic beverages such as coffee, orange juice, or carbonated drinks, it is recommended to wash and dry them promptly to maintain the condition of the inner wall.