This is a single Holddown Arm for LC-34 Launch Pad. Eight of these have been used for mounting Apollo 7 (Saturn 1B) on the launch table.
If you are interested in a complete set of eight, please contact me and I will offer it here.
Please also have a look on
my other LC-34 equipment, like launch table, flame deflector and holddown arms (all 1/144th scale)