Tired of that screeching, grinding noise every time you open your garage door? These heavy duty nylon rollers from The ROP Shop are about to change your garage experience! This 12-pack gives you everything you need to replace those worn-out rollers that are making all that racket. Each roller has a 2\ diameter (actually 1 13/16\ to be exact) perfect for standard 2\ tracks, with a 4\ stem that fits most garage door setups. The magic is in the 11 ball bearings inside each roller - these aren't your cheapo hardware store specials. They're precision 6200ZZ bearings that can handle up to 150 pounds each and are rated for 100,000 cycles! The nylon construction is softer and way quieter than metal or plastic rollers, plus they won't rust or corrode like steel ones can. Installation might seem daunting, but we've got tips: you can either slightly bend the track at the seam to swap them out one by one, or for the more adventurous, remove the brackets (just make sure to secure that cable spring tension first!). These rollers feature reinforced dual-wall bearing cages and double-plated stems for maximum weather protection. Your garage door will glide so smoothly you might not even hear it close. Perfect for DIY homeowners or professional installers looking for quality replacement parts that actually last.