Description: Material: stainless steel. Size: 57*18mm. Thickness: 9mm. Weight: 26g. Color: send at random,we do not offer color choice,pls note this before you buy it. .2. Whistle has double tube and crisp sound, without pea ,not moldy, you can use it in any environment.3. Maximum sound intensity of up to 120 decibels, make sure you be heard from a long distance.4. Made of stainless steel and lasts for years.5. Compact and highly portable. Buckle to your car key, wallet, camping gears.6. Use it in any life-saving situations, in parking lot, alley ways, or out in the wilderness. Note:1.Please allow little size error due to manual measurement. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different.3. The color of the item is sent by random. Package include: 1 * Double Tubes Whistle. 72913Hot deals