Replaces lost or worn out factory T40 ratchet Lifetime Warranty CR-V (Chrome Vanadium for correct hardness properties and corrosion resistance) Dims- 5.75" x 1.5" Fits painted and transparent roofs 84-96 Chrome Vanadium Corvette Roof Panel Installation & Removal Wrench. Affordable alternative. Ergo friendly torque length for easier tightening and loosening. Multi-use can be used for other GM bolts with anti-tamper bolt heads. About Us- We've been manufacturing replacement Corvette T-Tops and Roofs for over 35 years.