Harpoon cannons, which functioned as catapults, launched claw-like projectiles into space. Their purpose was to ensnare meteors circling a planet in orbit, subsequently pulling them down to the planetary surface. Notably, on Hy Izlan, the esteemed sabersmith named Lah Zhima employed these harpoon cannons to acquire kyber crystals. These crystals were then utilized in the creation of lightsabers, the signature weapons wielded by the Jedi.