Used a free months ago these to help balance in Epiphone SG bass. I've been satisfied with them for that purpose. The adhesive may not stick properly, causing the weights to fall off while driving!
Pros
Not much to say, it does exactly what it's supposed to and has a painted coating.
Cons
The adhesive may not stick properly, causing the weights to fall off while driving
When they showed up most of them already had the paper backing peeled off and they were stuck to each other. now they don''t have enough adhesive lest to stick to anything.