Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: What is the height of the dumbbell when it's in the case? I'd like to be able to slide them under my couch, which is pretty tall.
Document: The 2.5lb intervals include switching BOTH sides of the dumbbell. I was worried that I'd be able to switch a 2.5 interval, but end up unbalanced. This is not the case! I suppose if you wanted/needed an even finer interval, you should be able to bump up or down 1.25lbs if you don't care about the two ends being uneven.If you are picking them up and down off the ground a lot, watch your back.
Before I bought these, I had bought a MUCH cheaper set where you have to switch the plates yourself. No big deal, I thought. I unpacked the first dumbbell and promptly learned that swapping the plates is much more annoying and time-consuming than I'd thought. And that the cheap handles were pretty uncomfortable. I unpacked the second dumbbell and found that it was defective.
The dial also makes an audible clicking sound so you know when the proper plate has been added to the dumbbell, ensuring you are working out with the selected weight.I use the dumbbells mainly for cross training cardio tapes, so it's important that I'm able to move on to the next exercise without excessive downtime trying to change weights. The adjustable dial and easy slide in stack system ensures I will be back to my workout in no time!
Great dumbbells for P90X. Although they are a bit on the bulky side, there are only a few exercises that this impacts and you can work around pretty easy without degrading your form. The convenience factor really does outweigh. Being able to quickly adjust and  get into the routine is so nice. Also, very easy to do strip sets or up weight in small increments. I started out with a cheap dumbbell set, but has I kept having to buy additional weight I was not really saving that much.
I've enjoyed using this product and like it more than I'd expected. However, one of the sets didn't work (the dials wouldn't turn), and the troubleshooting suggestions didn't resolve the probably. After playing with the dial for a bit, I was able to fix it on my own.
It does not feel too big for the exercises shown on the DVD it came with. I'd like to point out I'm not sure whether it's the look or feel of this dumbbell but I have an urge to hold them in my hands once it's in my sight. A workout bench would be nice to pair with workout sessions.Cap Barbell Fitness FID Bench
In other words, the dumbbells look great with any weight setting because they are distributed and spread out accordingly. I think they look pretty cool even with no added weight plates (5 pound setting)kinda like futuristic hex dumbbells.The hand grips are hands down the best I've ever felt on any dumbbell period.
This was too confining and somewhat limited the range of motion. I also didn't like elastic cord and magnets holding the pin mechanism in place.The other set I looked at was the LifeCore. I was pretty close to buying these, but I really did not like the weight selection mechanism and method. The mechanism seemed to be rather flimsy and cheaply made. The selection method forces you to add the weight from both sides of the dumbbell to get your desired weight.
Switching plates is easy. They're pretty comfortable to use. I thought they might be too bulky, but that hasn't been an issue.I read reviews of some similar sets somewhere that said that the weights sort of clanked against each other while you were working out and that the clanking was distracting, but that hasn't been an issue with these either. The plates are coated in plastic, so even if they do rattle a little it's quiet.I didn't get the fancy tall stand, just the regular plastic trays.
Every so often the weight will stick when you initially select it, but I have always been able to readjust the dial and it takes care of it. That has never been a major problem. The one drawback to them is that they are not as sturdy as regular dumbbells. If you drop them from any significant height they can break. With just normal wear and tear however they hold up just fine.
Answer: yes