The difference between these and the other magnetic wreath hangers on the market is that these have hooks on BOTH sides. Instead of just the plain metal on the back, you get a second hook and can hang a wreath on the inside of the door or window too (and not have to look at the back of the wreath on the outside). And if you're using these on metal doors you get two wreath hangers for the price of one. The suggested weight limit is 10 lbs.