Help with headset

[Mr Bit]

Could anyone help explain this headset for a replacement I’ve looked on the site but can’t see Prestine 1860D Id 42/ I’d 52 Thank you

 

[Cycleops]

Here is a run down of all the headsets Prestine make together with specs:

http://www.prestine.com.tw/upload/download/202105311519400.pdf