Stainless steel perforated plate with FDA food grade nylon sliders to prevent screen blinding. Installation hardware included (30" - 60" only). Quantity of sliders dependent on size:
18 inch - 25 sliders
24 inch - 35 sliders
30 inch - 75 sliders
40 inch - 125 sliders
48 inch - 175 sliders
60 inch - 250 sliders