1.PREMIUM MATERIALS WITH PROPER SIZE: The package contains 6 jars in 6 colors, with screw-on lids and silicone spoon holders with stainless steel spoons, each of 16oz. The jars are made of high-quality sturdy borosilicate glass which is totally BPA-, and lids are strong PP and silicone with no lead. They stay in dishwasher and refrigerator. 2.WIDE OPENING: The jar has a large opening so you can easily put food in it and wash the inside. The jar is equipped with a stainless steel spoon on the spoon holder that is convenient for out-eating without bringing an extra spoon with you. 3.PERFECT SEALING & EASY CLEANING: The silicone airtight gasket inside the lid gives an excellent seal and completely leak resistance to keep food fresh and prevent spillage when carrying and fit nicely into lunch boxes and car cupholders. And the jars have wide mouth that makes for easy putting in and taking out food and also for easy cleaning. 4.CLEAR JARS FOR VERSATILE USE: The jars are crystal clear so that the food inside can reveal its appearance, paired with different lids colors, maybe they will motivate you to DIY with a variety of styles and combinations of food in it And it is perfect for making overnight oats like mixing chia seeds, yogurt, milk, and fruits, or use them as drinking glasses or anything else you'd use glass jars for.