Does anyone know what these eighteen arhats are made of? What's the point?

The moral in wood carving is that many children are blessed and auspicious.

The names of eighteen arhats are arranged as follows: bag arhats, long-browed arhats, banana arhats, meditation arhats, crouching arhats,

Lohan crosses the river, Lohan rejoices, Lohan descends the dragon, Lohan sits still, Lohan lifts the bowl,

Lohan Happy, Lohan Doorman, Lohan Riding Elephant, Lohan Exploring Hand, Lohan Tota,

Lohan picks his ears. Vajraputra, Lohan is sitting on a deer.

Production materials of eighteen arhats: glass fiber reinforced plastic eighteen arhats, woodcarving eighteen arhats and bronze statues of eighteen arhats.