Vintage CROWNWARE Canada Mustard Yellow Kitchen Storage Triangle Pie Storage Pie Container - Etsy UK
Triangular Tupperware container | Museum of Design in Plastics
HIQQUGU 100 PCS Triangle Clamshell Take Out Tray, Clear Plastic Take out Containers, for Sandwiches, Salads, Hamburgers, (5.5x4x3 in). : Amazon.co.uk: Home & Kitchen
150pcs Portable Clear Triangle Cake Containers - Reusable Food Storage Box for Cheesecake, Fruit Cake, Muffins, and Sandwiches
Cheap Pizza Organizer Box Triangular Shape Save Space Leakproof No Odor Microwave Heated Sandwich Storage Container for Home | Joom
Homiu 9-Piece Glass Food Storage Containers with Plastic Lids | DIY at B&Q