Here are some more details:
* Weight: They usually weigh between 4-8 ounces.
* Length: They are about 6-8 inches long.
* Development: At this age, they are still quite helpless and rely heavily on their mother for warmth, food, and care. They are just starting to open their eyes and explore their surroundings.
Remember, these are just averages. Some kittens might be slightly smaller or larger, depending on their breed and individual growth.