Is he open to trying a cock ring? Vibrating ones can be fun, but sometimes they had the opposite effect. We've experienced a noticeable increase in endurance using this one, though.
something ergo like this might be better than a ring.
still i'm worried the "give" that your device is trying to prevent is so micro that it will be very hard to have the device prevent even that little bit of give. what prevents the skin from being pulled through? what locks it in place?
I'm glad you like it! I got it here https://www.amazon.com/dp/B083Z4ZM9P/ref=cm_sw_r_cp_apa_fabc_Z69D37SAW3ZB02PEEXGA?_encoding=UTF8&psc=1
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https://www.amazon.com/dp/B083Z4ZM9P?ref=ppx_pop_mob_ap_share
It is. great nut hug. Still silicone so it has those drawbacks. I'd like to find one like this in metal.
No brand from Amazon. https://www.amazon.com/dp/B083Z4ZM9P
I'm glad you like it! I got it here https://www.amazon.com/dp/B083Z4ZM9P/ref=cm_sw_r_cp_apa_fabc_Z69D37SAW3ZB02PEEXGA?_encoding=UTF8&psc=1
Get a cheap cocking and try that. He’s one I use with DTR and it’s only $10.
Silicone Penis Ring, Adorime 3 in... https://www.amazon.com/dp/B083Z4ZM9P?ref=ppx_pop_mob_ap_share
It is as a great find on Amazon