Sixtus “7” are humbucker wound pickups for 7 strings. Those pickups are extremely narrow, only 5mm in height at 6000 coil windings. Those top mount pickups are available in covers of brass or stainless steel with the output cable leaving to the side.
To fix it, you can either use a double-stick tape or a putty recommended by your luthier. Either way, we recommend to check out the best sounding position before fixing it on the instrument. Upon request, they can be delivered with a magnetic mount for steel body guitars.
For administrative/bureaucratic reasons orders from the UK, Austria or from Germany cannot be processed. I kindly ask for your understanding.