• 【First】There are different diameter spline lug nuts on the market. And if you have any questions, visit our store and click "Ask a Question"

• 【Size】ID-0.7"(17.8mm), OD-0.83"(21mm), Overtall-2.75"(70mm), Depth-1.78"(45mm), 6 Splines Points. Compatible with 19mm (3/4) and 21mm (13/16) Hex Socket Wrench.

• 【Material】Not Easy to Break, Meets or Exceeds OEM Factory Standards. Durable Steel Plus Black Coating:Anti-Rust [Electrophoresis Painting] ,Anti-Cracked [Heat-Treateds]

• 【Fitment】6 Point Spline Tuner Lug Nut Socket Key Tool Compatible with M12x1.5, M12x1.25, 1/2-20, M10x1.25, 3/8-20Threads Pitch Spline Lug Nuts

• 【Customer support】If you have any questions, visit our store and click "Ask a Question". our engineer will offer professional service