Hot water bottle with faux fur cover. Hot water bottle dimensions: 17 x 14 cm / cover 23 x 17 cm. Material: Cover 100% polyester. First use: Bend the metal disc inside the pocket. Knead the hot water bottle to spread the heat. It diffuses instantly for a duration of 30 minutes. Reuse: Remove the hot water bottle from its soft case. Immerse the hot water bottle in a pot of boiling water for 8 minutes then stop. Leave the hot water bottle in the hot water until it cools down. The hot water bottle is ready to use again. Warning: Do not heat in the microwave. Do not leave the hot water bottle in boiling water unattended. This product is not intended for children. Do not machine wash.