Base – comparable to Millennium Standard plastic featuring durability and excellent grip. The Hard Tank is made of this Base material.
Base Soft – a softer and more flexible form of the Base plastic. It is not the same as the Millennium SuperSoft material. The Soft Tank is made of this Base Soft material.
Recon – comparable to Millennium Quantum plastic featuring die hard durability.
Recon Flat Top – Recon plastic with a flatter top
Frontline – comparable to Millennium Sirius plastic featuring the best grip and durability combination.
Frontline-X – a more gummy and flexible version of the Frontline and it has a flattened top. BTW, this plastic was introduced before the Innova GStar.