Description: Durable MaterialMade of titanium alloy material, it is small in size, light in weight, does not cause allergies, high hardness, sturdy and durable wear-resistant, corrosion-resistant and not easy to rust, and long service life. Exquisite WorkmanshipThe edges of the whistle are designed with small chamfers, the texture is smooth, and the rounded corners feel very good. There is pea-less design inside, and it can blow if water or dust enters. Super LoudThis small whistle can emit a super loud, super sharp sound, up to 120 decibels, which can easily attract the attention of others from a distance in any emergency situation, making you feel full of security. Necklace DesignEquipped with a stainless steel necklace, it can be worn around the neck, or hung on keys or backpacks, so you can get it easily when you need it. It can also be used as a decoration to make you look more fashionable. Wide AppilicationSuitable for various tasks, such as kayaking, camping, dog training, football and other outdoor or survival activities, the whistle can work in any conditions and make a loud sound without being hindered by water, dust, etc. Specification: Material: titanium alloy(whistle), stainless steel(necklace) Colors: silver Feature: waterproof, durable Size(approx.): whistle(D x H)0.8 x 4.8cm/0.31 x 1.89inch necklace(L)70cm/27.56inch Package Included: 1 PC x Whistle 1 PC x Necklace Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 1-2 cm differences due to manual measurement. Welcome to our store , hope you have a pleasant shopping experience