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 Mark Walsh

Good quality and does exactly what it should. But there is a problem with the installation. The written instructions in the box are practically useless. The video is slightly better but still confusing. Once you've installed one of them, you'll see that it's ridiculously easy. Once I figured out how to install the block there were no problems, at least the first time. But I had a problem with the second one. The trigger needs to be adjusted to engage the closer and it is secured with a tiny Allen screw. The bolts were so tight that the included hex wrench ripped out the bushing when I tried to loosen the set screws. I had to fabricate an 1/8" aluminum spacer to get the drives to the correct height. This was a minor issue for me, but would be a huge problem for those who don't have a well-stocked workshop.