Fiber-Optic Pro delivers a sight picture that is fast and accurate for competitive and recreational shooters. A patented light reflector focuses available light from all angles onto the fiber for a brighter glow, even in low light conditions. Features an Ultra-bright fiber-optic and serrated front sight for fast acquisition, blacked-out and serrated rear sight for increased contrast to reduce glare, fits standard holsters. Fiber diameter: 0.050". Spare Fiber colors included: Yellow, Ruby Red, Green. This model fits CZ Shadow Series, Tactical Sport, SP-01 with adjustable rear sight, front sight only. Front Sight Length: 1.0". Front Sight Width: 1.0". Front Sight Height: 1.0" Rear Sight Length: 1.0". Rear Sight Width: 1.0" Rear Sight Height: 1.0".