Stroller

A stroller comprising:

• a body frame including a wheel;
• a handle frame configured to perform an operation of moving the body frame;
• a first lock mechanism configured to switch one movable portion out of a plurality of movable portions of the body frame between a locked state and an unlocked state;
• a second lock mechanism configured to switch another movable portion of the body frame between a locked state and an unlocked state, the another movable portion being located at a different position from the one movable portion;
• and
• an operation member provided in the handle frame and configured to selectively activate one of the first and second lock mechanisms, wherein
• the operation member is displaceable between a first position and a second position and is displaceable from a pre-operation position to a post-operation position;
• the first lock mechanism is switched to a locked state or an unlocked state by displacing the operation member in the first position to the post-operation position, and
• the second lock mechanism is switched to a locked state or an unlocked state by displacing the operation member in the second position to the post-operation position.