Package Includes: 2 x Soft Close Mechanism. 4pc x screws, Soft Close size: 12.2in(L) x 0.75in (W) x 0.87in (H).Soft Close Type: One-Way Operation., Brand: Hahaemall. Surface:Black. Hardware Material: Plastic and Stainless Steel, Install: Hidden behind the track, standard circular hole design, easy to install on the track. single door need 1, double door need 2., Function: It slows the doors bringing them to a soft stop in their final position,ONLY the hardware is for sale. Door is not included.