Cold & Hot Bags for Back Pain, Neck & Shoulder, Smooth and Comfortable - Best Gift ChoicePerfect Gift - A unusual gift for Birthdays, Christmas, Halloween, Thanksgiving and Valentine's Day. Gift for parents, children, fiends or girlfriend, Secret Santa Gifts!Wide Mouth DesignWith its wide mouth it is easy to fill and empty. Convenient and safe to add the hot water. The anti spurt lip prevent water spitting back out.Anti-slip TextureGrid texture surface retains heat longer, non-slip and anti-scalding, with the soft fleece cover, avoid direct contact your skin to cause burns.Explosion-proof SeamsMade of natural rubber and thermoplastic PVC material. No risk of leakage or explosion after the test, which ensures maximum safety for seams fully bonded.Warm Tips:1. Before using always check if there a no signs of damage.2. DO NOT add boiling water into directly (Recommended to use for 45℃-80℃/113°F-176°F hot water). Better to wear the cloth cover before filling.3. As a cold pack, recommended the water/ice cannot below -20℃.4. When it's left unused, make it dry enough and properly air-out then place it in ventilate, avoid exposure under the sun.5. DO NOT close it without cover to the body for a long time for fear of scald.6. Hot water bottles must never be used as cushions or be sat on, or direct pressure being placed on.7. Keep away from babies or children, adult supervision is required when in use.8.Colour can slightly differ from the picture due to screen rendering.9.The size and weight of the product are measured manually, and there may be some deviation.The measurement tolerance is1-5cm.10.If you have any questions, please feel free to contact us. We will provide you with answers and solutions within 24 hours. Thank you for purchasing this product and wish you a happy shopping.