Three issues with this product/seller: ASIN B08L6LFQPZ1) I have contacted the seller (ADIOPro) via Revain regarding the following issues and supporting photos to provide provided. I specifically asked the seller if they would like to fix this issue before posting a detailed review. I never received an answer. 2) Most of the threads on the valve stem caps are damaged. They are deformed, partially threaded, or absent altogether. Of the 20 pieces I received, I was able to find four that threaded smoothly onto the valve stems. Some of the others bolt on, but essentially the valve stem cleans/cuts its own threads in the cap, making it difficult for the cap to turn. 3) Some of the sealing washers have an annular recess that you would normally see in a valve. the previously mounted stem cap. I found that very strange. I'm not sure if they're used, but I still consider it a defect. It could have been a good product if made to better tolerances and quality.