Reinforced Hollow Shaft 72mm - 300 yen each This hollow stainless steel shaft is injected with a resilient material, making it less prone to bending. Furthermore, it has been selected with a 1.97 checker, leading to increased speed!! Weight: Tamiya genuine black reinforced shaft is approximately 1.5g Our injected hollow stainless steel shaft is approximately 1g The elastic material brings it closer to the flexibility of a titanium shaft, reducing running troubles and making it less likely to bend! Using high-precision tires and wheels will further enhance the effect. Please comment if you have a desired quantity. Thank you very much! Mini 4WD