Size & Package: Ball door catches includes 4 x heavy-duty roller latches, 4 x Strike Plate; 16×Screws. The pack includes all necessary screws for quick installation, great for bathroom doors, closet doors, and external applications. High Quality: Made from premium brass and stainless steel material, these ball doors latches provide excellent corrosion resistance, strength.Heavy-duty springs and a roller ball mechanism make it exceptionally durable, ensure smooth operation, and resist wear and tear. Invisible Door Using: Doors latch securely holds interior door closed, parallel to the wall without protruding, with invisible effect, soft opening and closing, no noise. Generally used on doors where a latch is not used or neede door latches, suitable for a variety of decoration styles. Adjustable Ball Tension: Spring balls bearings with delicate thread, the height can be adjusted at will, according to the size of the gap between the door frame free to adjust the distance of the bead. Perfect for providing strong tension for the exact amount you need in any situation. Wide Application: These latches for internal doors are perfect for various applications including closet doors, flat doors, and more.The ball bearing or roller ball mechanism ensures quiet, friction-free movement, offering a noise-free solution compared to standard latches., Weight: 0.52029093832 Pounds, Manufacturer: ECVPH