The aluminum clad casement windows are hinged on one side and swing left or right. Opens and closes easily with a crank and folds away when not in use, the YY aluminum casement's easy-turn folding handle opens and closes easily for the life of the window without blocking the shade. Our fully reinforced sashes and frames provide structural strength to ensure the longevity and durability of your windows. Plus, with our unique 90-degree opening angle design, the exterior glass is easy to clean from the inside.Aluminum casement can be used in any style of home. Stylish window frames can bring a modern look through unobstructed large glass windows. If you prefer a more traditional style, adding a grille pattern can provide timeless design interest by dividing the light entering the room