WOW. My life is officially CHANGED! This dumbbell set is mind blowingAmazing and has completely turned my game around.These are great size, easy to adjust, and good value. The 5lb increment is a game changer. The only thing I’d recommend is to not drop them on the floor or else the dumbbells can get damaged. I reached out to their customer service and they quickly replaced the damaged parts for me.I absolutely hated typical dumbbells that took so much space and were a daunting task to bring out and put away. I almost always skipped lifting weights due to the hassle and inconvenience. Now with this, I’m actually excited for my workout each time and I’ve achieved my summer body a lot sooner than I was planning, thanks to this innovative product.Worth every penny!This is one of the best exercise product me and my husband owned, it looked very stylish and it is extremely easy to use and fits our needs. Furthermore, their customer service is EXCELLENT! This is one of the best service I got, a part got lost and they shipped to us without cost, we would highly recommend not just this product, but this company, since their attitude in service certainly reflected in their fine quality of their productsBeen using these since the first of the year and they have been amazing! Was skeptical in the durability at first, especially since I've purchased these to replace my broken adjustable dumbells from a well known brand. Needless to say I'am beyond impressed. Thank you for the quality product!After researching every adjustable dumbbell out there, I decided on either these Core Fitness or Roburflex because both products expand from the center like traditional dumbbells. I ended up choosing Roburflex because corefitness dumbbells are made of plastic. I don’t regret my choice even though they are pricey. They are very durable (2 months in using these dumbbells daily). They’ve made a difference in my workouts like night and day. I highly recommend themLike everybody else, I cross shopped some of the other brands on Amazon, lessor known ‘knock offs’ on Ali express (although everybody knows things are just being resold), FB marketplace and eBay. Ultimately I found myself on Amazon looking at snode and these for two reasons: 1) purchase protection 2) product availability (covid really messed up supply chain and product availability)But back to the main point:1) These weights seem to have a tighter clearance between plates than the snode which reduces the amount of chatter and sense of confidence that the plates aren’t going to drop on your face.2) The adjustment mechanism is integrated with the entire handle vs a half inch collar on the snode.3) The adjustment action between plates has a more solid feeling and sound than the snodes.4) These plates have a flat section, unlike the snode; keeping the weights from rolling on uneven surfaces. (I never realized how much I needed this)5) The krato weight stand fits like a glove. The snode units do not fit well on the krato stand (I never expected them to but it would have been nice)6) The base for these weights are plastic vs metal on the snode. The plastic ‘key’ that is responsible for releasing the locking mechanism may break or wear over time; effectively rendering the adjustable weights non adjustable anymore. Only time will tell if the plastic holds up and how this vendor manages extra supplies.I’ve now had these for three weeks along with the stand and let me say, I love them! They have been reliable and work even better than I anticipated. I also have gotten a chance to work with the customer service as I had a few of the connected clips break during shipping and unboxing (totally my fault). I reached out to the customer support and they responded quicker than any of my coworkers respond to my emails! And not only that, there were super easy to work with and nothing but accommodating. It’s hard to find a company that stand behind their product like this when they know they’re competing against big names. All I know is that I love these better than my old powerblocks and I look forward to future products from this great company!This company need to switch to a higher density foam to protect in shipping. One came and the foam was all busted. I got it out and tested it. It works but the #' for the weight is off. Yes other came and it was completely destroyed. I ordered another but if it isnt any better I will send them both back and but the more expensive ones, and hope they have figured out how to better protect in shipping. Will see, these are very expensive to be so poorly protected?‍♂️Really good quality dumbbells with excellent finish. I HIGHLY recommend! I had only ordered one to test the brand. I will be ordering a second one right now!