This unique product was designed in an ergonomic style to give the active driver back support. During your leisurely and rushing travels Lean On will maintain correct posture and comfort to make your driving, pressure free on your lower back. Can be used in any car and has a hardwood contoured base. Nylon straps are included to secure the position of the back support to your comfort needs. The fabric is stain resistant. The width measures 15. Length approx. 20. Portable.