Triangle Clear Replacement Visor Face Shield for Full Face Flip Up Motorcycle Helmet Model #TFF19 (One Size) For Triangle Brand Full Face Flip Up Motorcycle Helmet Model #TFF19 Only Hardening treatment(anti-scratch) on the outer and inner surface. Anti-scratch on the outside surface and anti-fog coating on inner surface. Transmissivity not lower than 85% of visible light; Tinted/Mirrored. Left and Right horizon not lower than 105 degree.