Food-grade silicone material ensures safe storage for your fruits, veggies, and lunches. Temperature ratings from -4F to 428F (-20C to 220C) make them suitable for microwave, freezer, and dishwasher use. Four sizes (350ml, 550ml, 850ml, and 1200ml) provide versatile storage options for your RV, refrigerator, and kitchen. Collapsible design saves space in your travel trailer and kitchen, making them perfect for travel, camping, hiking, and school or office lunches. Each set includes four collapsible containers with lids, ensuring you have enough for your daily storage needs. Item Name: Fridge Food Box Material: Silicone Shape: Square Features: Stackable, Collapsible, Heat-resistant Size Details: 350ml: 12.8cm x 9.7cm x 2.7cm/5.04" x 3.82" x 1.06" (Approx.) 500ml: 16.5cm x 10.9cm x 2.8cm/6.5" x 4.29" x 1.1" (Approx.) 800ml: 18.5cm x 12cm x 3.1cm/7.28" x 4.72" x 1.22" (Approx.) 1200ml: 21.5cm x 13.5cm x 3.3cm/8.46" x 5.31" x 1.3" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Fridge Food Boxes