This Hand Feet Warmer is a reusable and portable hot water bag, made of advanced thermoplastic PVC material that holds heat for longer periods of time than traditional rubber bottles. It comes with a soft plush cover that prevents direct contact with the skin, has anti-slip and anti-scalding features, and provides pain relief for muscle aches, menstrual cramps, shoulder pain, and tension. It can also be used as a cold compress for fever or swelling. The cute and charming patterns make it an ideal gift for family, children, and friends during the chilly winter months. Features 1. Unique Design: Soft plush cover prevents burns from direct contact with the skin, keep you warm longer. The hot water bottle and lid are made of advanced thermoplastic PVC material, which can store heat for a longer period of time than traditional rubber bottles, anti-slips and anti-scalding. 2. Multi-functional Water Bottle: Pain relief hot bag can be used alone to relieve pain and shoulder pain, muscle aches, menstrual cramps and tension (pain during calm period), and it can also be used as a cold compress for children with fever or swelling for injuries. 3. Easy to Install: The water heating pad is easy to install, let the boiling water cool down a little before you use it (do not use boiling water directly), grab the neck of the hot water bottle, slowly add water to 2/3 full, and finally tighten the nut, make sure there is no leakage. 4. Double Protection: Hot water bottle rubber is equipped with a soft detachable plush cover, which can prevent direct contact with the skin and cause burns and keep it warm for a longer time, and the appearance is more elegant and personalized. 5. Christmas Gift: Warm hot water bottle can relieve muscle soreness, keep warm in winter, with cute and charming patterns, and the hot water bottle becomes an intimate and warm gift for your family, children and friends on thanksgiving, christmas and new year's day. Specification Material: PVC Color: Red Size: 17 x 11 cm Weight: 25 g Package Include: 1 Hot Water Bottle