Twelve is the pitch
Capacity as a feature, stated in the hero.
A small-group workshop site selling scarcity and craft.

The Craft Masterclass sells a seat, not a ticket. Twelve is small enough to be the selling point, so the number appears in the hero rather than the FAQ.
The curriculum does the persuading: showing exactly what happens across two days converts far better than describing the atmosphere.
Paid workshops with limited capacity. Small cohorts justify a premium price and sell out on scarcity rather than marketing spend.
Capacity as a feature, stated in the hero.
Showing the two days beats describing them.
Removes the 'what do I need to bring' hesitation.