From the manufacturer
Type 2 – Wavy
Type 2 waves are bendable, can be fine to coarse, and are characterised by their definitive s-shape pattern.
2a – Tousled almost-straight texture with a loose, soft bend.
2b – Straighter roots with defined s-shape curls starting below brow level.
2c – Defined waves starting at the root mixed in with some full ringlets.
Type 3 – Curly
Type 3 curls can range from loose, buoyant spirals to tight, springy corkscrews which have some sheen but are prone to frizz.
3a – Large & loose, curls fit around your middle & index fingers combined.
3b – Springy, tight ringlets, curls fit around your index finger.
3c – Densely packed corkscrews, curls fit around a pencil.
Type 4 – Coily
Type 4 hair forms very tight, small coils & zig-zags straight from the root & are prone to major shrinkage.
4a – Dense, springy s-shaped coils that fit around a chopstick.
4b – Small, tight coils similar to a spring in a pen.
4c – Tightly coiled, z-shaped strands with greater density & shrinkage.