【Installation requirements】Suitable for drawers with an internal depth of ≥ 355-400 mm.—Drawer Runners Length: 350mm（14inch).— Fully extended length:700mm(28 inch).—installation clearance: 12.5mm(Each). Comes with mounting screws.It can meet the needs of various household drawers.There are other sizes available soft close drawer runners slides 300 350 400 450 500 550 600 mm Optional. 【Push to Open Drawer Runners】 These push to open drawer runners are equipped with a push-to-release mechanism. Just lightly push the front plate of the drawer, and it will pop open automatically—this frees up your hands when you’re busy cooking or carrying items. You don’t need to bend over to open or close drawers beneath cabinets either; simply touch the drawer with your knees to operate it. 【Detachable & Full Extension Drawer Runners】 These Drawer Runners feature a black plastic buckle on the back of the slide rail. Press the buckle to easily take out the drawer, making installation and maintenance hassle-free. As 3-fold full extension Drawer Runners, they allow the drawer to be fully pulled out, so you can conveniently access and store items without leaving any corners unreachable. 【Good load bearing and rust resistance】Made of 1.2mm high-density thickened steel.The bearing capacity can be as high as 45 kg.Has excellent anti-rust function,surface electrophoresis treatment. The electrophoretic layer prevents air from directly contacting the rail steel plate, thereby resisting oxidation and improving corrosion resistance. 【30 Years Service Life】 These push to open drawer slides come with a built-in hydraulic spring rebound device. They have undergone 100,000 rebound tests without any damage, ensuring long-lasting use. Unlike ordinary drawer slides, these require a slight extra push to lock into place when closing—this design prevents the drawer from slamming shut, keeping operation quiet., Manufacturer: Foshan yenuo Hardware Co., Ltd