This casement window is made of , which withstand use. Features the stainless steel and zinc alloy material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color:Black -Material:Zinc alloy, stainless steel - Size: 35.50X9.80X4.00cm/13.95X3.85X1.57in - High grade zinc alloy and stainless steel material, strong and durable, not easy to break. - Usually used for casement windows, horizontal sliding windows, top-hung windows, skylights, curtain walls, construction, engineering, fire protection, etc., easy to open, simple and beautiful. - Application of manual window opener: It is mainly suitable for lower hanging inward opening windows and upper hanging outward opening windows. Top-hung outward opening windows require special outward opening fittings. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install. - Adoption of simple and convenient design, this product also be used for a long time. Package list: 1 x set of window