The whistle with a keychain is made of aluminum alloy, which is sturdy and durable, not easy to break, deform or bend, and can still maintain its color and shape after long-term use. Their surface is glossy and smooth to the touch, providing you with a comfortable experience. The flat shape and double tubes make these survival whistles easy to blow. The highest sound is loud enough for others to hear from a distance, making them suitable as rescue whistles for emergency situations. 2 1/10'' L x 1/2'' W

Material: Aluminium Alloy

Imprint Area (LxW): 1 1/2'' L x 1/2'' W

Prod Dimention: 2 1/10'' L x 1/2'' W

Packing: 1pc/opp

Units/Ctn: 2000pcs/ctn

Carton Dimention: 15'' L x 13'' W x 12'' H

Weight/Ctn (lbs): 46.2lbs

Production Time: 18Days

Rush Service Time: 10Days