Description: Material: Rubber Size: Small: 18.5*11cm/7.28*4.33inch Medium: 25*14cm/9.84*5.51inch Medium Large: 26.5*18cm/10.43*7.09inch Large: 31.5*18cm/12.4*7.09inch Color: Random color for shipment Feature: 1. Filled with pure water, safe and harmless, providing you with warm and comfortable enjoyment. 2. Exquisite design, stylish appearance, comfortable texture, both practical and beautiful. 3. Multi-functional hot water bag, can be used to relieve pain, warm the body, and meet various needs. 4. High-quality material, leak-proof, long-lasting insulation effect. 5. Compact and portable, suitable for home and office use, providing warmth for you anytime, anywhere. Note: 1. Manual measurement may have an error of 1-2cm. Please understand, thank you. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. 3. The shipping color is random, please do not purchase if you mind. Package includes: 1* random color water-filled hot water bag