Nunchaku

A traditional Okinawan martial art weapon. Consisting of two sticks (traditionally made of wood), connected to each other at their ends by a short metal chain or a rope.

Nunchaku is cool weapon. As flexible weapon, your opponent can’t block it because although they block it, your Nunchaku will bent and keep hit them.

Sadly it thin - lightweight construction is not strong enough to block attack from stronger weapons like sharper iron sword or harder wood staff. Your opponent can’t block your attack, but you can’t block your opponent’s attack too, equal and funny. So avoiding the opponent attack is only defense option.