Material: Titanium / Stainless Steel Reference Number Dia. Φ mm Type AMS 254.150.000T/S 50 (R) AMS 254.160.000T/S 60 (R) AMS 254.170.000T/S 70 (R) AMS 254.250.000T/S 50 (L) AMS 254.260.000T/S 60 (L) AMS 254.270.000T/S 70 (L)