This cord lock has a unique beveled roller feature that makes it easier to pull shades up than other cord lock system. This cord lock works with all woven wood shades, bamboo shades and roman shades with a standard cord lock operation. Works with all manufactures. As usually, please check dimensions to make sure it will fit your headrail. This cord lock can work with up to 5 strings and as little as 2 strings. Cord Lock works with all brands: Hunter Douglas, Alta, Bali, Levolor, Fashion Tech, Century Blinds, Skandia, Smith and Noble, 3 Day Blinds, Budget Blinds, Conrad Shades, Carole Fabrics, Kirsch and Graber.