What is this Incan weapon? (for history extra credit)?

Question: What is this Incan weapon!? (for history extra credit)!?

answer by providing either its Incan name or its English meaning!?

The weapon image is
http://teacherweb!.com/CA/CarmenitaMiddle!.!.!.Www@QuestionHome@Com

Best Answer - Chosen by Asker:

Its a sling!. The Incans often put black pitch on them and set them on fire sending flaming rocks at their enemies!. Scary stuffWww@QuestionHome@Com

Slings were very common in the Incan army and that picture looks like a sling if I ever saw one!.Www@QuestionHome@Com

Slings very effective

Like in David & the big dudeWww@QuestionHome@Com