4Set 6060 European Inside Corner Bracket Gusset Kits, 57x57x59mm (Silver) - Silver($44.99Value)
[Size] - 2.24" (57mm) long, 2.32" (59mm) wide, 2.24" (57mm) high, 8 Hole Quantity - Hole Size1: 0.33" (8.5mm) in dia