Wilton Performance Pans Aluminum Jelly Roll and Cookie Pan, 10.5 x 15.5-Inch Large multi-purpose pan to fill lots of baking needs Color: Silver Made of even-heating aluminum for uniform baking 10.5 x 15.5 in. (26.6 x 39.3 cm) Before first and after each use, wash in warm, soapy water for best results Extra-thick aluminum heats evenly for perfectly browned bottoms. Recipe included