Thomann GTA30 Bass Drum Mallet 30mm

Bought 18 sticks of these for 226 Euros. Could not last past 3 mins of its first performance without 3 sticks bending.
Thomann's technician response was "this is self inflicted" and "these sticks are not meant for playing on drums with metal rims."

Thomann pls note most drums in this world have metal rims!
and did you write on your product, what these mallet sticks can't be played on?

As can see, other reviewers of this product also have the same problems as mine. So you have heard feedbacks as far as 6 years ago, but hearing, you are not "hearing" and therefore you continue to make and sell inferior products.