Naba made of aluminum. Height: 58mm. Number of teeth on a spline: 29. Diameter: 14mm. Suitable for: Honda Civic 88-91 (K4) Made in Japan. The product is not road approved. It is designed for use in motorsports, tuning exhibitions and more.Steering wheel hub made of 100% aluminum.Height of the hub: 58mm.Amount of teeth on spline: 29Diameter of spline: 14mmFits: Honda Civic 88-91 (K4) in Japan. Naba made of aluminum. Suitable for: Honda Civic 88-91 (K4) Made in Japan. Height: 58mm. Number of teeth on spline: 29 Diameter of spline: 14mm