Caulking gun 1.High-quality steel gun, more durable 2.Aluminum alloy handle, flexible, strong Caulking gunLong working lifethickness of material is 0.8mmnet weight ... is 365gmetal 230mm,Heavy duty Caulking Gun,thickness of material is 0.8mm, good plastic coated, net ... accord with customer requirement .Please inquiry us for more information Caulking gun