About 4000 of these molded miniplugs have been made in same way for ~21 years fitted onto DSM mics, preamp, mic adapters, and everything else made here requiring minijack connection.
Not one deck jack reported damaged or worn out in all this time of using this design.
Also, no report of the molded cord minijack used on this extension has worn out or been broken regardless of what design of plug is used with it.
This type of reliability is purposely DESIGNED into all my products, and the reasons for this reliability is NOT obvious to most. The fact that Sonic Studios gear rarely fails with normally expected rough use is greatly appreciated by the customers who rely on this stuff to keep working without breaking, or breaking their attached equipment.