Specification: Plastic whistle Material of whistle: ABS plastic, no peculiar smell, Coach referee Loud whistle: 120 decibels. The sound is round and penetrating. Whistle size: 1.9x0.68x0.68 inch whistle, 4.1x5.9in with lanyard bag, there are 2 whistle inside. Whistle function: food grade material, ABS thick plastic is safer and more durable. This p..