Mini Whistle Premium Emergency Whistle by Outmate-H62 Brass Loud Version EDC Tools;

Stand out amongst the crowd! The Outmate Premium Mini Emergency Whistle is extremely loud and easy to blow.
Brand new and high quality.
Perfect for Pet trainers, Coaches, Referee, Officials, Football Coach,Basketball, Soccer, Hockey, Lifeguard,etc.

Sound power: 120 dB.
Material: H62 brass.Outer surface is well polished and acid pickled to protect it from scratching and oxidation.
Whistle size: 41.5*10*10 mm(1.63*0.39*0.39 inch)

The color of the brass whistle changes slowly and constantly due to oxidation,so you can enjoy different beautiful apperances as time goes on,such as shinny and vintage.
Want it go back to shinny status? Just wipe it with a little toothpaste for 1 minute,then you are good to go.