We are new to Amazon but have been manufacturing welding curtains for over 25 years. Sizes measure height then width. Curtain comes with hooks for along the top. All our curtains are made from the finest 14 mil. Available in four colors. These curtains also come with the CPA1 rating and the California fire Marshall code for flame retardant, The 15, 25, 35, 50 and 75 ft curtains are only sewed along the top and 2 sides not across the bottom and come with hooks for along the top. Feel free to message us with any questions. 25% restocking fee. MADE IN AMERICA.