[Edit: this post has been misunderstood by some. To clarify, this is not a recall. There is no need to replace, modify, or purchase any upgrades. We are simply advising affected customers to use the parts we provided in a more reliable way than earlier instructed.]
Most Tensa4 stands sold between December 2018 and April 2019 feature small toggle and loop assemblies to connect the poles. The small toggles, pictured below, should no longer be used as originally directed, because they may break.
Instead, users should secure the connections using the provided carabiners on the end of the loop, like this:
While these small toggles pass our strength testing when new, they have proven too easily damaged, sometimes invisibly, in rough handling, accidents, or extremes of normal use, and they may then break under load. We have received enough reports of this happening (about one quarter of one percent) to expect more cases without corrective action. We have received no reports of injury.
We will replace any broken small toggles, now called push pins, noting that you should use only as a push pin to thread the lines through the holes in the ends of the poles, not to secure the connections as a toggle. Use carabiners or similarly sturdy toggles for that.
We have begun the process of revising all print and video documentation to reflect this change, and of notifying affected customers directly by email.
This notice does not affect the currently shipping large toggles, which pass through larger (12mm) holes in the ends of the poles. It is nonetheless good practice to attach the carabiners to the ends of the loops as directed above, facing the opposite inside connection in the stand, because it prevents the carabiners from bending as can sometimes occur with other attachment styles.
We thank you for understanding. We cannot prevent all equipment failure or falls, but we will always take reasonable care to minimize the incidence.