The household window is made of aluminum alloy frame and tempered glass, which is strong and not easily fragile There is a fiberglass screen for the bottom glass, preventing the insect from the shed. About this item Aluminum Frame:Our Small Shed Window made of aluminum alloy frame and high strength tempered glass and fiberglass screen mesh, Strong and Durable,Can long life, high reliability, and the ability to withstand harsh weather conditions Multifunctional :This Sliding Windows provides ventilation and sunlight to the interior of the shed.The shed window comes with tempered glass that... 【Happy Design】There is a net for the bottom windows, preventing the insect from the shed. 【Package Include】2 Shed Windows 14'' x 21'' for chicken coops sheds in one package with screws. 2 Pack Shed Windows 14 x 21 Flush Mount Window with 2 Pcs 14"X21" White Flush Mount Shed Window with Tempered Glass and Screen Household Windows Sliding Windows with Vertical Slider and Screws for Chicken Coop Sheds Barns. Size 14" x 21". Add to Favorite 【Quick Installation】With a flush mount structure and screws, you can install it by yourself no need other assit. Comes with 2 Packs 14 x 21 shed windows with tempered glass, fiberglass screen and stainless steel screws in one package Quick installation with a flush mount structure and screws, you can install it by yourself no need other assit Flush Mount Window Ventanas Para Casa Exterior 2-Pack Shed Windows 14x21 Inches - White Flush Mount Tempered Glass With Screen Fiberglass Screen Household Windows Playhouse Garage Small Window Perfect for playhouses, wooden houses, chicken coops, Garage, transom window, deer blind, horse sheds, Cat Catio, tiny house, bathroom window