Chef's Classic™ Non-Stick 9" Square Cake Pan - Cuisinart.com
Square Cake Pan (305 x 305 x 102mm / 12 x 12 x 4")
Amazon.com: TeamFar Square Cake Pan, 8/9 Inch Stainless Steel Square Baking Pan for Cake Brownie Lasagna, Non-Toxic & Heavy Duty, One Piece Design & Deep Wall, Smooth & Dishwasher Safe – Set
Amazon.com: EURO TINS Set of 4-piece square cake baking pans 6, 8, 10 & 12 Inch (4" Deep): Square Cake Pans: Home & Kitchen
Square Pan | King Arthur Baking Company
Amazon.com: Astra Gourmet Flunyina 4 Inches Non-Stick Square Cake Pans Set of 4 Carbon Steel Cake Molds for Home Daily Housewarming Wedding Birthday Party Brownie Making: Home & Kitchen
Fat Daddio's Square Cake Pans — All Sizes – Bake Supply Plus
Square Baking Pans (2 PC Set including 6 inch and 8 inch) – Curated Kitchenware