Ordered 4 received in time but one of them was broken, the seller must pay me the next day (2 days ago) but I have not received anything, it may come tomorrow? As for the product, it seems good, the clip has a fairly large force. Just the broken part of problem that seems very fragile, it is the collar that surrounds the fixing screws. I expect to have other breakages at this level, but that can be arranged easily.