Product Features and Basic Specifications Features: * Electric zinc plating and black chromate treatment resist rust and termites, improving the durability of your home. * Turnbuckle method reduces work time compared to conventional methods. Precision is also improved through fine adjustments during construction. * Easy level adjustment even after installation, even if the joists shrink. * Thick film thickness of 13 microns or more of electric zinc plating with black chromate treatment enhances rust and termite resistance (usually around 5 microns). * Rubber plates are attached to the joist receivers to prevent contact noise with the wood (joists). * Type: L type * Corresponding dimensions (mm): 192～267 * Accessories: Mounting screws (Φ4×40mm) 4, Concrete nails (Φ3×25mm) 2 * Color: Silver (plated) * Surface treatment: Dacromet plating * Compression load (kN[kgf]): Maximum 37.58[3834] Shipped in simple packaging. I am a DIY beginner, so I don't know the details.