I was initially dubious purchasing handles over the internet, but the experience was faultless. The website provided a good description along with appropriate sizes resulting in a perfect match for my requirements. Delivery was extremely efficient. Word of caution, I was upscaling existing doors and retaining existing sash locks as these were in good working order even after 35 years old. Unfortunately the spindles were too big, so i had to retain the existing spindles which i then needed to cut down to size to fit the new handles. The retaining screw on the new handles secured the smaller spindles to provide a secure fit, so problem resolved.