Apply soothing warmth to neck and shoulders—and keep it there! 100% cotton cover, in assorted prints (we’ll choose), surrounds a bag filled with flax and wheat seed. Place in microwave for 1 to 2 minutes, and this warmer will provide up to 30 minutes of warmth and comfort. Cool in freezer for use as a cold compress. 17" long x 4 3/4" wide.