Aluminum Caulking Foaming Gun Foam Sprayer PU Grade Expanding Spray Application Applicator Ergonomic design, comfortable for long periods of use. Into the plastic head is more solid, not easy chipping and drooling. This Heavy Duty Aluminum bodied PU foam gun is ideal for filling, sealing. Featuring a Stainless Steel Nozzle this Gun allows expanding foam to be applied quickly and with precision. Size:32cm x 13cm