Snoopy Insulated Cups Set of 2 Capacity: 300ml Mouth Diameter: 51mm ---------------------------------------------------------- These cups have non-slip bottoms. They can be used in the car, for picnics, and more. There's a cute Snoopy design on the inside bottom as well. ---------------------------------------------------------- Sealing Ring: Silicone Lid: PP Cup Body: #304 Stainless Steel With safety lock Heat Retention: 6h ≥ 50°C or higher Cold Retention: 6h ≤ 10°C or lower Maintenance: ◎ If not using for an extended period, dry the inner container and other parts thoroughly. ◎ Do not use alkaline bleach when cleaning. How to Use: ◎ Before use, wash the cup body and all parts thoroughly with a mild detergent. ◎ Adding a small amount of hot or cold water for preheating or pre-cooling before use will further enhance the heat and cold retention effects. ◎ To prevent leakage, close the lid tightly by turning it clockwise.