Marvin Adjustable Window Screen 24" Tall, 37"W, Extends from 21" to 37"W Steel Charcoal Extends from 24" high, fits 21" - 37" wide This is the original, high quality "W.B. Marvin" screen Plated easy-gliding steel rails for fingertip adjustment, wood ends and coated Aluminum screening Bright mesh screen wire, extends from 21" - 37" Galvanized rails and varnished wood ends