Ergonomically designed acupressure pillow Ergonomically designed acupressure pillow from Bed of Nails, filled with buckwheat hull for a perfect consistency for use on the neck, lumbar, under the feet, or on any curved area of the body. In less than 20 minutes each day, this pillow helps to alleviate a whole host of pain issues, including chronic neck and back pain, sore muscles and headaches, daily stress and even insomnia. Made with sustainable materials2142 precision BON nails51 acupressure plates14.5" x 4" x 6How to Use: Use your Bed of Nails pillow when needed, preferably 10-20 minutes daily, or as long as you desire. Handwash pillow cover in lukewarm water. Rinse by hanging and shower off. Let hang dry.