Sai (weapon)

Sai is a special weapon that looks like a fork with long prongs and a handle in the middle. It is a tool that was used by people who were training to be ninja in Japan a long time ago.

When you hold a sai, you hold it by the handle and you can use the prongs to block an attack from someone, or to attack them yourself.

It's like using a fork to eat your dinner, but instead of food, you use it to protect yourself or fight against someone who is trying to hurt you.

Sai is a very special weapon that requires a lot of practice and skill to use correctly. People who train in martial arts and self-defense might use a sai to help them learn how to protect themselves.