Blow away the competition with this combination whistle and keychain. This 1.85*0.28 inches whistle is made of durable aluminum and comes in four bold colors. It makes a great whistle to make some noise at a pep rally, ball game or concert – and just might help you out in the event of an emergency. Add your school, sports team, organizational or company logo, emblem or message through our signature laser process to create a great gift or giveaway at grand openings, product launches, trade shows, conventions or other social or business activities and events. This custom aluminum metal whistle key chain. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Portable, durable, practical for daily use.