Has any one else used these. It says its made of high impact thermoplastic so Im hoping it will hold up against an errant cast on rocks or concrete. I just picked one up at walmart and looks like it would be good for alot of the small ponds and lakes I fish. I dont plan on using it on the Ohio River or going after monster blues. The visibility of the light seems good and best of all it actually says Made in USA on the package. I plan on trying it out soon and will post how I like it. I figure it should pay for itself quickly compared to buying lightsticks even in bulk. Bobber and batteries were less than 4 buck.