The 17'' Satin Black Warehouse Shade is 17'' in Width, and 8 1/4'' in Height. RLM's are Manufactured Using Aluminum. The Architectural Bronze, Satin Black, Satin Green, Satin Red, Copper, and White are electrostatically sprayed and oven baked with UV stabilized paint appropriate for indoor and outdoor use. All shades, excluding Copper and Galvanized, incorporate white liners for increased light reflectivity. The RLM's are UL Wet Listed when using the Stem Hung or the Gooseneck Arms. The Stem Hung, and Gooseneck Arms come in 3/4'' Diameter, and come in many different lengths. Every RLM comes with 100'' of Wire Length.