Package Contents: 2 Soft Close Mechanism, 4 S-Shape Hooks, 2 Actuators, 4 Actuator Spacers, 4 Screws, Hex Wrench. Installing our barn door soft close mechanism is a straightforward process. The package includes all the necessary hardware and step-by-step instructions, making it convenient for DIY enthusiasts and professionals alike What Makes Us Different: We add 4 extra actuator spacers which will solve the issue that door is too far away from the soft close. Each Spacer's Height is 0.15'', you may install 1 or 2 under both actuators to raise its height and reach the soft close device. Upgraded Actuator provides more stable catch with the soft close while opening or closing doors Effortless Operation & Smooth Closing: With our advanced soft close mechanism, opening and closing your barn doors becomes effortless. The smooth gliding motion requires minimal force, providing a seamless and enjoyable user experience. The soft close feature ensures a gentle and controlled closing motion, preventing slamming and reducing noise Material and Specifications: Black, Plastic. Hole-Free Version Barn Door Hardware Stopper, One-Way Operation. Hidden behind the rail, it slows the doors bringing them to a soft stop in their final position. With the latest design of the soft close, there is no need to drill holes on the track or decide where to install screws. Simply attach the soft close to the back of the track with the hook and fasten it with the supplied hex wrench. 0.4-1" gap from rail to door.Overall Size: 12.13 x 0.72 x 0.85 Universal Weight Compatibility: Designed to support a wide range of door weights, including doors weighing up to 160 lbs, whether it's a light door, a regular door, or a heavy door. Enjoy the flexibility of using it with various door sizes and materials. This hidden placement of the soft-close mechanism maintains the aesthetics of the barn door while providing functionality and convenience