Stainless steel protective sleeve - The armored jumper adds a layer of small diameter spiral stainless steel protective sleeve outside the optical fiber, enhancing compression resistance while also ensuring the same flexibility as standard optical fiber jumpers and the various superior optical properties of the optical fiber itself.

Aramid - High strength aramid reinforcement is used between the outer sheath and the armored sleeve to ensure that the fiber optic cable has no tensile strain and the outer diameter is standard. It is suitable for various connector loose parts applications.

PVC/LSZH/OFNP - ? As a surface material, PVC can be flame retardant, chemically resistant, and tear resistant, while also increasing the flexibility and elasticity of armored fiber optic jumpers; ? LSZH, as a surface material, has excellent flame retardancy and safety; ? OFNP, as a surface material, has high heat resistance and low-carbon production, and a high fire resistance rating.

Optional connectors - commonly used connectors include SC, LC, FC, ST (UPC/APC optional).
link:https://www.fibertelcom.com/fiber-patch-cords/armored-fiber-patch-cable.html