60 Pack Invisible Cable Railing Kits, T316 Stainless Steel 1/8″ Invisible Receiv
Material Steel T316 Stainless Steel T316 Stainless Steel T316 Stainless Steel T316 Stainless Steel T316 Stainless Steel T316 Stainless Steel. Because of their material, you can install them both indoors and out.