Kettler Locking Strut
The Kettler Locking Strut is used on a few different outdoor Kettler ping pong tables, including the Kettler Stockholm.
Its function is to lock the table top in an up position, and must be depressed to lower the table for play.
Kettler no longer uses the Locking Strut with Thumb Latch part #94110959 in combination with the Locking Strut with No Thumb Latch part #94110960. It has been replaced by the combination of the Locking Strut part #94110960 and the Non-Locking Strut part #70130900.