Now there's a better way to rustproof your car. This durable undercoating system is ideal for applying Heavy Duty Anti-Rust and Rubberized Undercoating. Applies direct from the adjustable gun nozzle 24" long by 7/16" diameter flexible wands Straight or 90 degree spray tips One year manufacturer's warranty Flexible wands are perfect to rust proof the inside rocker panels, inner fenders & other closed box sections. Undercoating is easily sprayed from the attached gun nozzle (extension wands not recommended for spraying undercoating) Requires 40-60 psi @ 5-6 cfm. NOTE:This does not include a bottle or undercoating. Works with Bottle #16003A.