Give customers and clients a great way to make extra loud sounds wherever they’re needed with these emergency survival whistles. Available in assorted colors, each 1.9″ x 0.4″ aluminum alloy whistle comes with an attached keyring. With your full color logo silkscreen printed on each, these branded whistles make great promotional products for camping, hiking, boating, and sporting events. Orders of 25,000 pieces or greater are eligible for sea shipping. Rush service is available.