SIMPLE AND “INFINITE” USE: The Eco-Conseils Hot Water Bottles contain wheat grains that thanks to their thermal inertia, slowly restore and diffuse their temperature on your skin. You will get a calming and comforting warmth without the risk of burns. To heat your hot water bottle, place it: In the microwave for up to 2 minutes (800 Watts) Or in your traditional oven for up to 10 minutes (at 150°C — thermostat 5), Or on a radiator 20 minutes maximum. The hot water bottle is reusable as many times as needed. Thanks to its rectangular shape (45 x 16 cm), it will fit perfectly on your neck and relieve your neck pain. It can be used on a swollen ankle, your lower back or on your stomach... Our hot water bottles should not be considered as a substitute for medical treatment, they are a natural supplement aimed at your well-being. Colour: Grape Weight: 0.8 kg