Feature Highlights: 1. Premium Quality & Safe Material: Made from food-grade silicone that’s odor-free, recyclable, and durable. Features a thick PVC inner layer for even heat distribution and long-lasting warmth. 2. Wide-Mouth Design: Easy to fill with water—no spills, no hassle. 3. Microwave-Safe Heating: Simply remove the knit cover, fill with cold water (100% full), and heat. Small size heats in under 2 minutes, large size under 3 minutes (using ≤800W microwave). 4. Dual Hot & Cold Therapy: Use as a hot water bottle for muscle relief or chill in the fridge as an ice pack for swelling, sports injuries, or fever. 5. Secure & Leak-Proof: Large threaded stopper resists high temperatures and corrosion to prevent leaks. Product Details: This upgraded silicone hot water bottle offers comfortable, lasting warmth or cooling relief. Its food-grade silicone construction is safe, odorless, and easy to clean. The wide opening makes filling simple, while the thick PVC liner ensures heat stays evenly distributed. Perfect for soothing aches, cramps, or injuries—use it warm for relaxation or cold for swelling. Microwave heating is quick and convenient, and the leak-proof stopper keeps you worry-free. Ideal for home, travel, or daily comfort. Specifications: - Material: Food-grade silicone + thick PVC inner layer - Heating: Microwave-safe (≤800W) - Includes: 1 hot water bottle (knit cover removable) - Available in sizes: Small and Large - Color options include Pink (as shown)