Bought this without reading the description, it's meant for a six string with narrower string spacing or possibly a four with a big pickup.
Won't work with a 5 as it has two blades of equal length so the middle string will sit between them if that makes any sense.
Anyway here's the link to EMG which should tell you all you need to know.
EMG 40P
All the bits are there, unopened and the pickup hasn't even been fitted to a bass.
All yours for £75 posted to your door.
Cheers
Andrew