XL-C 7163 justo slide single dormotion units are designed for 120 kg glass/wood sliding panels with the feature of soft closing or soft opening operation on one side of the sliding door panel. The system contains an SDM (single dormotion unit) which has a spring mechanism for making the door to shuts slowly when it touches the activator without sudden impact force the JS 120 kg SDM unit package contains 1 no's of single dormotion unit, activator plate, etc. It is very easy & flexible to mount and works on a silent and easy operating system, with soft-closing or soft-opening operation. The list of benefits for this product is also quite extensive. For traders, it is a complete solution for single sliding door panels, and soft closing/soft opening is also included in the standard package. For installers, it comes with faster installation without any glass cutouts. For the architects/specifiers, this product provides that premium-ness to suit the customer's needs making it suitable for modular, residential & commercial use. And at last, it is a superior quality item tested at high standards of quality, durability, and ease of handling.