Weighing in at only 18.5 ounces per bracket, these sturdy aluminum standoffs can be attached to most extension ladders by simply compressing the two bracket ends and slipping them into the rung openings having an inside diameter of 1 inch or greater. They are held securely in place by the tension and angle of the bracket. To detach them, just compress and slide out. If you are looking for a standout stabilizer that will fit in a smaller space, and a smaller budget, you will find it in our aluminum Standoffs.