Vehicle recovery devices, namely, traction mats, [ traction blocks, ] traction materials, traction sheets, traction ramps, and traction ladders, being portable non-metal vehicle traction devices; Vehicle recovery devices for improving traction of the wheels of a transportable vehicle, namely, portable non-metal vehicle traction devices comprised of flexible, wear-resistant plastics featuring at least one ramped end and studded surfaces to provide traction for vehicles; Traction devices used f...