This Cordless 1" duplex room darkening mini blinds give your window a clean, finished profile without dangling lift cords. The cordless system works using a hidden torsion spring that act as pulley. It is easily to pull up and down on the handle thus open or close the blinds. You can then position the blinds to any height you desire. This elimination of lift cords means increased safety for children and pets. It is made with moisture-proof PVC so slats are easy to clean and will not warp in high humidity areas. This unique feature makes this product a great choice for any room and at fraction of a real wood.