Easy to install at the covers, they stay there, won't fall out, they don't need anything additional like silicone or glue, just by themselves on the clean valve covers. Worked great, no more oil leaks, very Happy with the quality of the product
The product was just as it was described. Good quality and pretty blue!!!! The vendor sent the item quickly, I received it within 2 days of ordering the item. The mechanic was pleased with the product.