A: They are mostly made of mild steel, powder coated clear. Please see this link for further information on different metals and finishes.

A: A small lizard weigh approx. 800 g. That is i.e. the loo/toilet roll lizard and wiggle tail . 

A: We used to use acrylic resin which was good to protect the lizard surface. But now we are getting the lizards powder coated clear which has better protection. Indoor good protection, outdoor may get a patina over time.