Wind frameWind frame Open the window and enter a different world? Use your ideas to create unique works of art! You can create works that look different when the window frame is closed, when the window frame is open, and when there is no window frame. The mechanism that changes into three types is designed to stimulate students' creativity and make it easier for them to express their individuality. 270380mm Kent paper 270 x 355 mm x 1, Kent paper 270 x 380 mm