These were packaged as gift roses, sold at about 3$ a peice. There's no info on the tag in regards to size. They're very small, 6" to the ground about a foot across. Will they get any bigger?
Yes, they will get bigger. They could range from 1.5' to 3' depending on the particular variety and I can't begin to tell you what the varieties are in specifics. Because they are un-named, there's really no telling til you've had it in the ground for a year or two. I've had to move some. Most will eventually be replaced by named varieties that I can count on a realistic size estimate.