Materials: resin and silicone Size: 10mm / 390.00" Color: colorful 1. Cute and unique: This resin heart-shaped straw cap is uniquely designed, making your drinks more fun. 2. Safe and healthy: Made of resin material, safe and reliable for use. 3. Convenient and practical: A set of 6 different colors, easy to carry and replace, suitable for family use or party gatherings. 4. Perfect fit: Designed for all 10mm (0.39 inches) straws, these portable straw caps are perfect for Stanley 30 and 40-ounce cups with straws. Not only practical, but also decorative for your straws. 5. Versatile: These straw caps are not only decorative but also very practical, making them the perfect party gift for boys and girls. Whether as a birthday gift or a school reward prize, these straw caps can add festive and practical colors to any celebration, making your event more memorable. Package Includes: 6 x heart-shaped straw caps Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.