Description: 【Easy installation】: Comes complete with 2 stainless steel mesh screens, 2 spring hooks, 2 silicone rubber strips, and a dedicated installation tool for quick setup without additional equipment 【Construction】: This RV furnace vent cover is built with quality stainless steel and rustproof aluminum components for long time performance in various weather conditions 【Universal compatibility】: Designed to fit most furnace vents on RVs, camper, and trailers with adjustable dimensions 【Complete Protection】: Effectively blocks , rodents, and birds from entering through furnace vents while maintaining proper for ventilation 【Enhanced door handle functionality】: Features an additional grab bar made from aluminum and ABS plastic that installs easily on most RV screen doors for improved accessibility Specification: Material: stainless steel, aluminum alloy, PC plasti Size Chart: Mesh Screen: 7.2cmx3cm/2.83inchx1.18inch Spring hooks: 2.5cm/0.98inch Silicone Rubber Strips: 22.5cm/8.86inch Package Includes: 2 Stainless Steel Mesh Screens 2 Spring Hooks 2 Silicone Rubber Strips 1 Installation Tool Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.