Cal Missile™ duct projectiles are designed for quickly and efficiently running pull-lines through conduit and duct systems. Used in both exposed and underground applications, these projectiles easily navigate through out-of-round ducts using pneumatic force. Manufactured from a highly engineered polymer, they offer superior elasticity, toughness, and durability. Available in five sizes, each projectile includes dual fastening rings for versatile mule-tape tie-points. Polyurethane cups resist solvents, oxygen, ozone, and sunlight, providing exceptional flex-life and performance in demanding environments.