Review on Upgraded Hole-Free Version Barn Door Soft Close Mechanism with Adjustable Door Stoppers and Actuator Spacers - Sliding Barn Door Hardware for Door Weight 70-160 Pounds by Kyle Hood

I can't believe every barn door doesn't have one. I have double barn doors and they help ensure they are always fully closed and perfectly centered. Also prevents doors from floating when open or closed. After installation, the doors are always fully open or fully closed! You can push your doors pretty hard and they will slow down and close softly. In addition, no stops are required. I have no idea why people say they are difficult to install. You clamp one on the open side and tighten it with the included Allen wrench. Then insert the latch into the top of the door and into the slot in the soft close mechanism. Hold it and use a screwdriver to screw the self-tapping screw into the top of the door. Then repeat in the closed position. So easy and took about 30 minutes to install 4 of these.