Referee Whistle - Classic Sports Signal Tool for Coaches & Officials #312358 (License: Personal Use)

This grayscale vector-style illustration depicts a traditional pealess whistle, featuring a rectangular mouthpiece, a central air channel, and a rounded barrel for sound projection. The design emphasizes functionality and clarity, with bold black outlines and subtle shading to suggest depth and form. Ideal for educational, sports, or safety-related digital content.

Used on sports training websites, referee certification pages, school PE resources, or emergency preparedness guides; matches user intent for visual identification, instructional diagrams, or iconography in UI/UX design.