Chain link centerstop (Part #CS-CS-A) is shown below right side up. The groove in the center is for sliding in the drop rod. Install groover parallel with gate in closed position.

Dimensions:
Diameter = 6-5/8"
I.D. of Bottom peg (Inside Diameter) = 1" (not shown above)
O.D. of Bottom peg (Outside Diameter) = 1-3/8" (not shown above)
Peg Length = 1-5/8"
Material = Aluminum