This Mini Building Blocks Tarantula 270 Pieces is for Ages 12 and Up.  It is new and unopened.   I got as a gift and decided it was not something I wanted to try.  Here's a summary of this toy/model:

The Mini Building Blocks Tarantula is a 270-piece, educational, and detailed modeling kit from The Mini Block company, perfect for arachnid enthusiasts and builders aged 12+. It features micro-sized bricks (
4mm x 4mm) that assemble into a 
model with realistic, textured legs.