Heavy-duty T-square Made of Aluminum.Drywall T-Square(T-Square,Square,stainless steel squares,super square,measuring tool) Material: aluminum Color: yellow Size: 48 and 54 inches Thickness: 1/8 or 3/16 inches Package: two pieces/board, eight pieces/carton Drywall T-Square(T-Square,Square,stainless steel squares,super square,measuring tool)