With the Hand Crank Window Opener with Curved Arm and Bracket, you the benefits of improved ventilation. The mechanical crank mechanism makes it easy to , allowing fresh air to circulate and reducing the risk of stuffiness. The curved arm design effectively removes smoke and odors, creating a living for you and your family. crank handle allows for precise control, enabling you to adjust the window opening according to your preference. The sturdy bracket ensures that the window opener remains stable and secure, even during strong winds or vibrations. Features -Color:Silver -Material:Stainless steel -Size:15.63X10.00X2.00cm/6.14X3.93X0.79in -Size:86.50X8.30X2.00cm/33.99X3.26X0.79in -Enhanced air circulation and improved air for refreshing living environment. -Minimizes the chances of feeling stuffy and eliminates unpleasant odors. -Promotes a atmosphere for you and your loved ones. -Allows for precise regulation of indoor airflow to suit your preferences. -Ensures stability and security even in challenging weather conditions. Package list: 1 x set of window crank