The Bed of Nails Flat Cushion is the perfect addition to the BON Collection. The cushion is designed to be use at your desk, in your car, or anywhere that may require you to sit for long periods of time. The sleek new design lays flat against any surface for optimal relief and relaxation.Ergonomically designed for use alone or with the BON ECO Mat. The BON ECO Cushion is covered with a breathy 100% organic linen fabric filled with 100% biodegradable buckwheat hulls, these hulls allow for constant air circulation through the pillow, which keeps you cool and dry. Since the buckwheat hull is springy and doesn’t compress under pressure, it provides a firm, contouring support that supports proper rest of your head and neck positioning and will reduce stress on your neck, head, and spine, or on any area of the body.Dimensions: 16″ x 11″ x 4″ (41 x 28 x 10 cm)Comes with a carrying bag.