"The SeamSAFE anchor was an excellent choice for myself. There was no need to put permanant anchors on the roof, causing an unappealling look or leaving unsightly patched holes. The ease of movement is excellent. I have loaned the anchor to several roof contractors and hood cleaners. They ask how they can get one, and I give them the info. Every roof contractor should have several of these to fit the different roof ribs, and I plan on ordering another one."