I regularly use these badge parts and they always work well!
The only issue I have with them is that sometimes the plastic backs pop out of the front part though this happens to only about 10 badges total and I have had this issue with other manufactures badge parts. Other than that they're very durable and long lasting, I have been able to put them through thick material without breaking. Would definitely recommend getting as its a great price for the amount you get and never had a quality issue.