Yinpecly 4Pcs Inside Corner Bracket Gusset Aluminum Alloy Interior Joint Bracket Suitable for 4545 Series with Slot Aluminum Extrusion Profile Silver Tone

Total Size: 42 x 42 x 42mm / 1.65" x 1.65" x 1.65" (LxHxT); Hole Size: 8.5mm / 0.33"; Made of high quality aluminum alloy material for good rust resistance and better performance, durable and solid; Suitable for european standard 4545 series with slot aluminum profiles, built-in connection with beautiful and simple features; Widely used for building industrial aluminum frame structures, 3D printers, CNC routers, CNC laser cutters, etc