A safety bracket or anti-tip device is a piece of metal with a u-shaped slot. It attaches to your cooker and either a wall or the floor to prevent your cooker from tipping over.It depends on how heavy your range cooker is as to whether you need a safety bracket. A very heavy cooker should stay in place without one whereas a lighter one will probably need one. If your electric range cooker needs a safety bracket, this will probably come with it.