Aim rings have evolved. Two types of hardness are now available, and this one is the soft 80. Significantly upgraded from previous products: • Available in 18mm, 19mm, and 20mm diameters, allowing you to choose the resistance that suits you. • Usable in eSport tournaments. Used by professional gamers in Japan and Europe. • Made of natural rubber, the same material as tires, resulting in a very long lifespan, with an average durability of 1500 hours. • The uniquely calculated resilience provides comfortable operability. Aim rings are innovative items that physically add resistance to reduce stick drift, and this product is the only genuine aim ring.