Designed to allow secure mounting of the Navi lights with magnetic base to all PFDs having a lash tab or webbing loop. Fits perfectly to the lash tab or wedding loop on PFDs. Comfortable solution to carry the Navi lights with magnetic base either as working light in the front in Masthead mode or as Sternlight on the back. Under rough conditions a good place to carry the Navi light 360° and Rescue in case a man over board marker is needed.