The Himalayan Secrets© Salt Neck Pillow is a pure Himalayan salt product that relieves aches, promotes relaxation, and improves sleep. Encased in a breathable bag, it conforms to your body shape, providing targeted relief to muscles and joints. The pillow absorbs heat for up to 30 minutes to alleviate soreness and promote muscle relaxation, while a chilled pillow is ideal for post-workout use. It absorbs moisture and eliminates odors. Microwave (30-50 seconds only) or oven heat the pillow (on the lowest setting for 10-15 minutes!). You may also freeze it for a cold experience. Store in a cool, dry place, and perform a patch test before use. Warning: exposing the salt pillow to too much heat for an extended period may cause the fabric to catch fire. Follow the instructions provided. Keep out of reach of children, and pets. Also, remember that the contents of these pillows are not suitable for consumption as they are not crafted with food-grade edible salt.