The Ultra Rail Tile Roof Hook WS is designed to work with Flat, S, and W shaped tile roofs which can typically install with minimal cutting/grinding of tiles. Provides enhanced install flexibility regardless of the rafter location due to the 1.25" vertical adjustability and 6" horizontal adjustability of the tile hook in relation to the large 2.56" x 8" base. Its 0.20" stainless steel arm is thicker and more rigid compared to competing products on the market, requiring less roof attachments per installation.