I have driven 1500-2000 miles a day, ie 100 miles a day, 6 days a week. I have to say VERY GOOD quality spacers. As with everything, there was NO need to be skeptical at first about the REALLY MUCH price compared to BORA wheel spacers! I bit the bullet, bought it, installed it and never looked back, and I can safely say I'm a happy camper. Now, as for the other so-called NEGATIVE REVIEWS on these spacers, leave reviews of the GRAIN of SALT while researching quality products. Obviously, BAD PARTS will exist whether you like it or not. Nothing in life is perfect and sometimes you may come across a DUD, but give the company a chance to fix things. From what I understand, Revain Market sellers literally take complaints about bad parts and are more than willing to send you a free replacement to fix things and make you a happy regular customer. I already had bad batches, I contacted the company and BAM! The replacement part is on its way and you will receive a return label free of charge so that you can send back the bad batch. Easy. Likewise. Did I mention these wheel spacers along with the 2" ZoneOff-Road raise kit, 37" MudClaw tires and Power Stop Extreme brake pads and rotors are a BEST for hauling and towing on a 2013 Ford F150 , when it comes to off-road and everyday driving of the year. EcoBoost Lasso 3.5L V6. Yes. Okay, bless America. peace for all.