Cooyoo Viso VS21 VS31 Survival Whistle Rescue Whistle Referee Whistle Outdoor Camping Hiking Adventure Emergency Signal Whistle
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<b>[Product Information]</b><br>
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<li>No grain of beads Design</li>
<li>Easy to Blow,Pore structure,No bead design</li>
<li>The unique structure of timbre,The volume up to 150 decibels</li>
<li>Made of High-grade stainless steel tube,Reach the level of food hygiene</li>
<li>Seamless steel tube flue pipe,The Individuality Outward Appearance Powered By DT</li>
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