Ateco 12010 10" x 10" x 3" Aluminum Square Straight-Sided Cake Pan
Square Cake Pan (254 x 254 x 102mm / 10 x 10 x 4")
Fat Daddio's 10 Inch Square Cake Pan with Solid Bottom
Amazon.com: Square Silicone Baking Mats for 10 Inch Cake Pan, 9.65"Square Food Grade Silicone Mat for Baking Sheet for Cake/Pastry/Toast/Pie, Non-Stick Reusable Baking Mat for 10x10 Air Fryer/Square Cake Pan/Oven: Home &