Removable seat attachments for a stroller

A convertible stroller configured for being converted from a single stroller to a double stroller, the stroller comprising:

• a stroller frame configured for being adjusted between a folded configuration and an unfolded configuration, the stroller frame comprising:
• a handle portion;
• a front wheel support portion;
• and
• a back wheel support portion;
• and
• at least one front wheel secured to the stroller frame's front wheel support portion;
• two rear wheels secured to the stroller frame's back wheel support portion;
• a first seat removably attached to the stroller frame;
• one or more seat attachment portions removably attached to the stroller frame;
• and
• a second seat removably attached to the one or more seat attachment portions and positioned in front of the first seat;
• wherein at least one of the first seat and the second seat is configured for being removably attached to the stroller frame in a forward-facing configuration and a backward-facing configuration;
• and
• wherein the first seat and the second seat are positioned such that a center of gravity of the stroller is between the at least one front wheel and the plurality of back wheels.