Apply soothing warmth to neck and shoulders – and keep it there! Our neck wrap has a 100% cotton cover that surrounds a lavender-scented bag filled with flax and wheat seed. Place neck heat wrap in the microwave for one to two minutes, and this warmer will provide up to 30 minutes of warmth and comfort. Cool in the freezer for use as a cold compress. 17" long x 4 3/4" wide.