Xgunion 3 Pcs Stainless Steel Sports Coach Whistles with Lanyard Metal Whistle Loud Crisp Sound Whistles for Coaches Referees Teachers Kids and Adults

Loud sounding

This was very cheap in cost and worked well.

Bought for a parade and they worked wonderful. Loud, light weight, and arrived timely.

they are not durable. Cheap construction. However, they do the job and are an asset to have in your emergency bag to make noise, so you can be found. Unless they got crushed in the rubble when you fell on them. :(

The whistle is small. It looks slightly longer than an inch and does work, but not as loud as larger whistle. It does require positioning my mouth a certain way for it to work properly. The material looks and feel like a pop can but sturdier. Won’t crush with your fingers, but accidentally stepping on it will likely flatten it. I bought it to carry with me on my small boat, but ultimately may need to consider a larger one in the future for this purpose.