This is a homemade jobber. Used treated 2x6 with insulated Pipe, revesiable boat winch, turnbuckle for fine tuning, and quick clamps. Drawing board is covered by carpet so it will not scratch your bow. I have moved into a place with only a one car garage and can't have the home shop I use to have. I can do pictures tonight. Cost about $70.00 to make will sell for under half at $30.00. Please PM if you are interested.