Hot Water Bottle Not Only Warms Your Body But Warms Your "Heart" in Chilly Winter. Place It under Your Bed Cover to Chase Away the Chilly Night Air,You Will Experience the Soothing Comfort of the Heat Bag for Even Longer. Safe and Easy to Use: Open the Cap First, Then Pour Two-Thirds of the 80-Degree Water into the Rubber Water Bottle. Finally, Screw on the Lid and Turn the Warm Water Bag Upside down to Check for Leaks. Helper: Heat Packs Can Be Used for Hot and Cold. Hot Compresses Can Relieve Knee Pain, Back Pain, Menstrual Cramps, and Cold Hands and Feet. Great Gift Choices the Perfect Birthday or Holiday Friends and Family, Ideal for Keeping You Comfortable at Night or Quickly Relieving Pain.<br><br>Colour:As Shown Material:Polyester fiber+PVC<br><br>Package Contents: 1 * Hot Water Bottles<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.