Starting formations: Completed Double Pass Thru, Eight Chain Thru. More generally, a Couple with their backs to the center of the set, each center dancer directly looking at an outside dancer.

Command examples:
Centers In
Put Centers In

Dance action: Without changing facing direction, the outside dancers step away from each other to make room for the center dancers, who step forward to end between them.

Ending formations: Various. From Completed Double Pass Thru, Lines Facing Out. From Eight Chain Thru, Inverted Lines with Ends Facing.

Timing: 2

Styling: As center dancers step between the outside dancers they take hands with them, as appropriate (couple handhold if facing the same direction or Ocean Wave styling if facing opposite directions).

Comment: While Centers In appears to create extra space in the center, either the next call or square breathing (see "Part 4: Additional Detail: Dance Action: Square Breathing") will reduce or eliminate that space.