The product was delivered very quickly and first appeared to be quite good quality. During installation, it turned out that 6 of the required reinforcement rings for the head restraints were missing. After contact with the seller replacement was quickly delivered, but which were false and not functional. This was a second time so sent, although I have described the error. So I'm assuming that were controlled before shipping the rings not to function. Moreover, it has now been found in less than 5 weeks, that in the Geckmuster solve several threads and not just on the driver's seat, but also the co-driver, though there rarely is someone sitting. The drama has but now begun. The return the product proves to be very difficult. Since the 30 days have expired, says Amazon, please contact seller. Provider says shipped via Amazon, Submit a complaint since. Well. In the system you will be sent by Ponzius to Pilate. Have now been addressed directly by Customer. We'll see what happens