Ideal for use over any radiator simply fix brackets to shelf and slot behind the radiator. Helps deflect the heat back into the room; Easy Home Assembly; 60 x 13 x. The brackets screw to the underside of the shelf and slide down between the rad PAIR NO DRILLING ~ EASY SLOT RADIATOR SHELF BRACKETS ~ SPUR. These are easy to fit radiator shelves by just screwing brackets into shelf and slot behind radiator. (brackets & screws included). TIP: The gap behind the radiator.