Useful whistle light match whistle loud sound wear-resistant widely used outdoor whistleSpecifications:This whistle can prevent loss and fall through its lanyard design. And it can be very convenient for you to carry and store because of its lightweight and small size. It has the characteristics of strong penetration and loud sound, and is very reliable and practical. It has a wide range of uses, making it suitable for a variety of outdoor activities. Made of ABS material, it is very durable to use. The length of this product is 6.2cm, width is 2.8cm, and height is 1.8cm. Suitable for sports, competition, mountaineering, camping, training, playground, etc. Item Name: fit whistleMaterial: ABS Capacity: About 130decibels Features: Wear-resistant, convenient carrying, dustproof Size details:Size: 6.2cm x 2.8cm x 1.8cm/2.44" x 1.1" x 0.71" (Approx.) Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 x Match Whistle2 x Mouthguards1 x Lanyard1 x Hand Strap