I have no idea how old they are. We got them from PetsMart and it didn't tell us. If it was my gerbil I would try looking for a breeder, but I doubt my brother will bother with that. Dipstick seems happy and my brother doesn't want to return another one (he felt so bad for Skippy).
I wanted to hold one of the gerbils before my brother took them home, but it you had to go into this small space to get them out and I'm not sure they would've let me.
We had actually planned to get two males because we read that they aren't as territorial, but we went to the petsmart that had all females by accident and my brother fell in love with Dipstick.
She is the sweetest little thing. Doesn't mind being held or anything. She's happy and my brother is happy, so I hope it works out.