These Canadian made blackout roller shades are made with 4 ply vinyl fabric. The 4ply Vinyl provides an extra layer for increased durability and longevity of the shade. As a result of the extra layer, the front and back of the fabric will have a smooth appearance for a uniform look from both interior and exterior of the window. The fabric blocks the light making this an ideal window covering for bedrooms, nurseries, maed rooms and any other room where no light is desired. The open roll design of these shades provides a classic look and can pair very well with drapery. The chain operation allows for easy raising and lowering.