This Pella casement window measures 38.5 inches wide by 39.5 inches tall and features a white wood interior with aluminum exterior cladding for durability and low maintenance. The left side operates with a crank mechanism for opening and closing, while the right side is fixed. Glass is obscured and tempered with argon gas fill for improved insulation, and a 0.50 solar heat gain coefficient helps manage energy efficiency. Item is in like new, in-box condition with no damage or missing parts.