Standard Single coil size, but it is Humbucker! 
 
You can install it in a Fender Strat/Squier with no modifications. There are 4 conductors, and four wires so it is splittable. 
 
This is a quiet pickup with 10K ohm resistance high output. 
 
It can be paired with the Fernandes Sustainer, providing neck humbucker sound when Sustainer is off. 
 
Check our Sustainer store section for kits and other parts.
 
Made In Japan.