A Double Stroller for the Twins

I have a sister who has twin girls, and they can be a handful. They are at that age when they just started to get into everything. It is so hard for her to go places sometimes because it is hard for her to be able to keep an eye on them. I decided that it would be a good idea to look into some lightweight double strollers for her so she can have something to put them in when she goes places. I know it will really help her to feel like she can do things instead of keeping them inside all the time.