Get their attention with the Champion Sports Medium Weight Plastic Whistle. This pea whistle features a metal ring for easy attachment. Black, medium weight plastic whistle. Each pack includes 12 whistles. Sold as 3 packs, 36 whistles total.Key Features : i : Black, medium weight plastic whistleii : Perfect for use in P.E. classes or on the playgroundiii : Metal ring for easy attachmentiv : 12 per pack, sold as 3 packs, 36 whistles total