Best giraffe uni for a ten year old?

Balance, not so much.

A giraffe is easier to ride than a regular uni because you have more time to react.

Try balancing a broomstick vertically on the tip of your finger, then try a pencil.

The broomstick is easier.

You might want to look through the giraffe discussion thread, and here’s the review thread on Torker giraffes: