Don't even think about launching your D rocket or cluster-powered rockets on that whippy wimpy Estes Porta Pad 3mm rod!!!
This is a plated steel Estes MaxiRod, spanning a full 3/16 inch in diameter (or 5mm in new money). It comes in two sections joined by a roll pin just like the 3mm version.
And for those of you resistant to golden oldie popular culture, that's Mr Rod Stewart shown singing that old rocketry ballad "The First Spack is the Deepest".
Please note: this is the rod only and does not include a launch pad base such as the Estes Porta Pad II or Hesperis HELfire model pad.