QUANTITY&SIZE - 10 x Angle Brackets, Total Size: 60 x 60 x 18mm/2.36" x 2.36" x 0.7"(L*W*H); Mounting Hole Dia: 4.3mm/0.17",5mm/0.2"; Mounting Hole Distance: 21mm/0.83", 41mmm/1.61"; Thickness: 1.5mm/0.06" - The corner shelf braces were made of metal,…