Size :Assortment with size .
3.Logo: Laser or screen printing
4.Keychain Whistle Sample time: 5 days
5.Production time: 10 days
1.Material: High quality brass/Aluminum .
2.Survival whistle Key chain Size: Please look at the picture for assortment .
3.Outer surface is well polished and acid pickled to protect it from scratching and oxidation.
4.Portable and convenient.With a ring on the top, you could put it on your keychain and take it everywhere you go.
5.Ideal for many outdoor activities, such as camping, hiking, training, basketball,etc. It's also used for communication with companion in remote areas,calling for help in emergency, or first aid kit equipment.