Solid brass, brass-plated whistle with synthetic, water-resistant cork ball. Bulk packaged, one dozen per box. Split ring included so this whistle is ready to be attached to a lanyard, key ring etc. Availability: Usually ships the next business day. Model 300B (sold by the dozen) 300B$48.00 American Whistle Corporation 6540 Huntley Road, Columbus, Ohio 43229, 800.876.2918, 614.846.2918