Warning: You'd better disassemble the existing wand tilter in your blinds and make it compare with the size and shape of our tilters. If it has difference,please don't palce the order in order to save money for you. Because the similar ones will not match. The tilter has a Square shaped gear hole in the center (this means that the metal rod that is located inside of your blind's headrail must be square shaped in order to fit inside of the gear.) The Square Gear hole in the center is 5/32" wide in diameter. Package of 2pcs wand tilt mechanism used For 1-1/2" blinds headrails that measure 1 3/8" x 1 9/16" and have a 5/32" square-shaped tilt rod. Please kindly check the size in the picture and make sure it can match your device before order.