National Hardware Matte Black Soft Close Interior Barn Door Kit a smooth and quiet closing experience for most flat track sliding door hardware kits. This kit features a soft close action that installs discreetly on both ends of the track, ensuring your door opens and closes quietly without any abrupt stops. Designed for easy mounting on new or existing flat track sliding door hardware, it includes two soft close attachments, mounting clips, and all necessary installation hardware. Detailed instructions are provided to make the installation process straightforward and hassle-, making it a upgrade for your interior barn doors. Model Number: N700-112