Material: Silica gel Color: as the picture shows, (Due to the difference between different monitors, the picture may have slight color difference. please make sure you do not mind before ordering, Thank you!) (Please allow 1-3mm error due to manual measurement. please make sure you do not mind before ordering.) Our Dough Proofing Box Is Suitable For Recipes Involving Flour, Water, And Yeast, For Use In The Refrigerator, Oven, Microwave. This Bread Proofing Basket Is Made Of Food Grade Silicone Material, Friendly, Of Harmful And Artificial Dyes, And Can Withstand Temperatures Up To 450°F (230°C). The Bread Dough Fermentation Container Is Easy To Use And Can Be Cleaned Effortlessly, Allowing DIY And To Make Fresh And Delicious Bread With It. The Outer Diameter Of This Bread Dough Fermentation Container Measures 26x16.6cm, It Your Bread Into An Oval Shape, The Size Is Suitable For Most Home Baking Projects And Average Size Bread. Our Dough Proofing Box Is And Soft, It Can Be Easily Folded Up When Not In Use For Easy Storage And Transportation.