Specifications:

• Weight: 30 g
• Size: 105 * 20 * 30 mm
• Product Name: Double Whistle
• Process: Nickel plating
• Origin: UK
• Origin: GB(Origin)
• Model Number: ACME144
• Material: Italian brass
• Decibel: 120+ dB
• Brand Name: ACME
• Applicable people: performers, music lovers, band conductors, hockey referees, training;