The Camillus Slingshot is made for rugged use and has intelligent design features like: folding arms for compact transportation, an ergonomic handle with a storage compartment and it comes with a firestarter/whistle plus a compass, for the ultimate in survival slingshots. The heavy duty powerband is replaceable. The Camillus Slingshot comes with four (4) steel ammo balls that are in the storage compartment of the handle. This is one of the best slingshots available. Lifetime Warranty.