Super Wide Mouth - 4.3 inch/10.9 cm wide opening,the large glass jar with lid is wide enough to fit your 1 cup measuring scoop. It’s also wide enough to allow a man’s big hand to get in for cleaning 2 Measurement Marks - The Cookie jars with fluid ounce (american unit of capacity) and millimeter(international volume unit),no need to use a measuring cup,more convenient to measure Airtight Leak-proof Lid - These large mason jars come with a hinged lids and a silicone gasket,which are tightly matched to provide a double seal,great for both dry food and liquid,keep food fresh and does not leaking Premium & Thick Glass - The jars with airtight lids weight 3.24 lbs,which is 1 lbs heavier than a normal glass pickle jar,The thickening of the glass walls makes the bottle more durable and stable,lead-glass,safety and healthy,dishwasher safe Multi Use - Food storage jars,candy jars,kombucha jar,laundry container,kitchen counter. Make your kitchen more neat and tidy.