Hi Brooke, thank you so much for taking the time to leave your review - we appreciate it! Our CanvasHangers™ are designed to be used in drywall only, and will not work on very hard wall surfaces such as concrete, cinderblock, plaster, tile, stone etc. In order to work properly, make sure that they are installed on the canvas so that the single large pin is facing the wall, and the two smaller nails are nailed into the frame of the canvas. Then you should have no problem pushing the hangers into the drywall - definitely no hammering required! Hopefully this makes sense, if you have any other questions or concerns, please don't hesitate to reach out to us at info@utrdecorating.com