This is a headband strap replacement for the Hifiman Padded Headband series of headphones. (HE400se, HE400i, Edition XS, Deva, HE-R9, HE-R10D, He-R10p, HE6se) This may fit on other hifiman headphones but it it uncomfirmed at this time.

You can purchase a premade version here! You will still have to install it yourself, though it will be 3d printed and put together before shipping.

Installation instructions are located here.

Printing instructions are located here.