Never used NIKKEN magnetic discs contour memory foam pillow is for relaxation / pain therapy. The pillow has been stored clean & sanitary. Firm support that holds its shape over time and 100% polyester machine washable cover. Made in USA I am not a NIKKEN distributor or affiliated with NIKKEN in any way. Dimensions 19.8” x 12.6” x 3.7” Smoke free and pet free 🏡 Reasonable offers welcome 🤗 Bundle & Save 15%