Note:These are 4oz jars with measurements upto 3 OZ;Making baby food has never been so easy Portion, store, freeze, warm and serve delicious, healthy homemade baby food;Convenient freezer safe, dishwasher safe(top rack) and microwave safe;Measurement marking, clear containers and 30 easy to remove, paper labels; so no guessing on contents;High quality and comfortable to hold, these durable, portable jars have leak proof and easy to use screw on lids