I wasn't sure if it was Chinese junk or not. Both whistles are inscribed "Made for Firestone, Made in Vietnam". Looked solid, mounted them on the front tires of my 15x6x6 lawn mower so I didn't have to spend $60 on new tires. My rotten dry, but there was a lot of profile. Small tires are difficult to mount on small rims, consider bringing your own mounting space for about $10 per wheel.