If you have an extension table that uses leaves, these black metal table locks are exactly what you need to keep everything securely connected. The package includes 4 table buckle connectors plus 16 mounting screws, so you have everything needed for installation. These locks feature an internal spring mechanism that provides solid clamping force to hold table leaves firmly together without any wobble or separation. They're made from zinc-plated iron metal, which gives them good durability and resistance to rust and corrosion over time. There's even a handy switch indicator that shows you whether the lock is in the open or closed position, making operation straightforward. Installation is pretty simple - you just need to measure carefully to position the locks correctly on both sides of the table joint, mark your screw holes, and secure them in place. The trick is to make sure you have the right tension when locked, so test the positioning before final tightening. These work great for various types of extension tables including dining tables, conference tables, and even some types of cabinets or case boxes that need secure connecting hardware. The black finish gives them a clean, subtle look that doesn't stand out obtrusively on your furniture. Whether you're building a new table, repairing an existing one, or just want to upgrade wobbly old connectors, these table leaf locks provide that solid, professional connection that makes your table feel sturdy and reliable. No more worrying about table leaves separating during dinner parties or meetings!