These Poly-carbonate P90 bobbins really are the best we've seen in recent years - offering a taller internal, with a narrower central core then the old style ABS P90 bobbins we've carried, giving you more room for your coils without compromising on strength.

They're also have great heat resistance when wax potting, so they're not prone to warping even with the thinner walls.

Finished in a matt texture, and suitable for dog ear and soap bar P90s - they also have holes to feel the hookup wires through to keep everything neat and tidy.