The size of pleated blind tensioner is 17 x 17 x 14 mm / 0.67 x 0.67 x 0.55 inches. Please kindly check the size on the picture carefully and make sure it can match your device before order.,The pleated blind tensioner is made of plastic material.,It can use to secure the tension cords to your shades(Both sides of the Roller has holes.),The blind tensioner is used for blinds rope fastening. It can let the pleated shade blind stop rattle and holds the shade neatly in place.,Package includes: 16 pcs Pleated Shade Blind Tensioner. Sufficient quantity to meet your daily needs and replacement.