Flexible ferrous sheet is a kind of magnetic receptive material, it is generally used with flexible magnet as a pair, it is made by mixing iron magnet powder with synthetic rubber or plastic (CPE etc.). It is flexible and has the characteristic of flexible magnetic sheeting. It is easily cut, bent, twisted, coiled, or be machined into almost any shape without damaging.
Flexible iron sheet is not a magnet, but used as metal base for flexible magnetic sheeting or other magnets.