This product is part of the guttering downpipe, it fixes onto the end of the downpipe to give a nice flow out from the downpipe. The shoe is fitted to the down pipe with a simple push on system, however you should secure the shoe onto the downpipe by placing a Half Round Downpipe Bracket around the shoe and fixing it to the wall using two screws to secure it in place. This product is compatible with most standard half round guttering ranges except for the Osma, Marley or Terrain.