These collapsible food storage containers are made from food-grade silicone and designed for versatile daily use. They include 4 different sizes 12 oz. 17 oz. 27 oz. and 40.6 oz. each with a secure-fitting lid. The material withstands temperatures from -4°F to 428°F, making them safe for freezer and microwave use, though lids should not be microwaved. They are also dishwasher safe for easy cleaning. Their collapsible design allows them to flatten when empty, significantly reducing storage footprint in kitchens, RVs, or travel gear. Ideal for portioning meals, packing produce, or organizing snacks, they support home, office, school, camping, and hiking needs. The smooth silicone surface resists odors and stains, and the flexible yet sturdy construction holds shape when filled while remaining lightweight. No assembly or special care is required beyond standard washing, and the seamless interior prevents food residue buildup. Color: Blue.