The invention relates to a seat attachment for a stroller, single stroller and double strollers. The seat attachment includes left and right seat attachment portions, wherein the seat attachment portion comprise a connector portion capable of removably connecting to a stroller frame and a left seat support element removably connecting a seat in either a forward or backward position More specifically, versions of the seat attachment relate to a seat attachment for a stroller capable of supporting a seat such as, but not limited to, a stroller seat, a baby seat, bassinet, a pram, a car seat, or a baby carrier, for example.