Wow!! You're babies are growing like weeds!
Our yorkie babies are a day or two older than yours,also a litter of six, mom 5 1/2lbs, born on the 10th, and the biggest boy who was born at 5.2oz is about 9.4oz now...no eyes opening yet..and still just crawling (maybe they're slower because they were born at day 60?).
Would love to see pics of your babies! I'll post some more soon
Debbie
Tea' +6