Ergochair Ergo-RS Ergonomic Height-Adjustable Creeper SeatThe Ergo RS adjustable height rolling work seat makes performing awkward work tasks ergonomically easier and safer for those who need to lie down, bend, or contort their body to perform repetitious work duties. The Ergo RS adjustable height rolling work seat makes performing awkward work tasks ergonomically easier and safer for those who need to lie down, bend or contort their body to perform repetitious work duties, especially car and airplane