Features: These windows for a shed measure about 10 x 18 inches, offering a proper size for sheds, garages, and other outdoor structures. The size is large enough to provide ample natural light while still being enough to fit in most standard sized sheds. You can confidently install these windows in your shed or garage without worrying about compatibility issues. The windows feature tempered glass, providing durability and safety. Tempered glass is stronger than regular glass and can withstand impacts without breaking into sharp shards, reducing the risk of injury Specifications: Flush mount shed window: Material: aluminum alloy, tempered glass Color: white Size: about 10 x 18 inches Screw: Material: 304 stainless steel Size: M4*20 Length: about 0.79 inch/ 2 cm Width: about 0.16 inch/ 4 mm Package includes: 2 Pack of flush mount shed windows with tempered glass 1 Pack of screws, totaling 50 pieces Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Pointed and small items are included, please be careful when using, and please keep them away from little ones and pets in case of choking risk.