Only for the really stable.
596214
Have been warned by many, many (after the purchase) of the problems with stability with this bike stand.  We returned it and purchased an exercise bike.
3561431
These are really only acceptable if you are smaller than a C cup, and even then I can only imagine using them for yoga or sleeping. There appears to be too little support for any hard physical activity.
2492270
It wobbles a bit... Only good for recording at a downward angle.
1512279
buy a lot of RC toys, this thing is for collectors.  Not really very controllable.
2560620
Useful only for those who are already in great shape. Not for me.
4163429
Not enough modifications for limited range of motion that sometimes comes with age.
2684950
A very nice pillow but not plump enough to hold the head at proper angle or stiff enough.

Because of the weight of the material it might actually be able to hold its shape for a while but the pillow is pretty much useless for anyone looking for a "very firm" pillow.

Oh well, back to the search for the truly "extra firm" pillow.
774364
this can only really support a bit of weight, and if you use this around a corner, be careful the wire isn't pulling this off the wall. it's also rather unsightly.
2678032
Looks fun, but can only be used at very low speed.
3586892
Maybe it does work for some people. Not for me. No change in balance, strenght... But, not expensive, so worth a try.
1517478
despite the shock, the iPhone 7 stabilizer (using with OSMO iPhone 7+ version) - it still didn't create the smooth effect I wanted... not even close. I ended up just holding the OSMO, much better that way. Save your money. Good build quality though, I will say that...
999050
This was bought with the intention of replacing a tripod on video shoots with a compact camcorder.  While fine for static shots, it's still too wobbly for pans and tilts.  While the ball and joint at the bottom of the monopod allows you to adjust the monopod, you can't lock it in place and so it will move when you try to tilt or pan.  As a result you have to grip the monopod to try and hold it steady during pans and tilts.  The result is a shot with wobbles.
The monopod is lighter than a tripod and far more stable than a standard monopod.  If I was just going to use it for pictures or static video shots, it would work fine.
3405273
Mizuno needs to end this bastardized Inspire line and brong back the Alchemy line as this is not a suitable replacement. These shoes just compensate for everything with thick sole around the heel so it provides not really forward/medial stability. This in turn adds to a loud tap with every step especially since my work has hardwood floors. They don't grip very well either. The only benefit from these shoes are that they are comfortable if used in short doses. If you're flat footed looking for support then these are not the shoes for you.
428199
This was not a stable base. It wiggled and rocked. Its the forked stock holder, it does not sit on the legs without shaking, the legs are ok and the forks are passable. I couldn't even get a pellet gun to hold steady much less a hunting rifle.
999251
If you have a large dog that needs a kennel this size, chances are they have strength equal to my dog and WILL GET OUT. This kennel is not secure enough to keep a strong willed animal contained. The metal is extremely malleable and my >50lb mutt mix has bent the frame and door every time I've left her in there. She grabs it with her teeth and pulls inward. I have to get inside the kennel myself and push it back into shape. Only way I have been able to get her to stay in the kennel is by buying keyed padlocks for the top and bottom door hinges. Surely it's a great kennel for a senior citizen or otherwise lifeless dog, but not for one with escape artist tendencies.
1150280
The tree is a bit unstable like other reviews said, but it's not enough to fall over even if the cat is pouncing on it. Unfortunately it's only useful to the platform above the first cubby, because the area with the big cat cubby is straight above the small cat cubby, it makes it difficult to get up and down from that point. My cat can't use the three tall platforms and the toys because she can't jump high enough from the ground to the bit platform.
4825669
The legs make your bed less stable and much more wobbly. The height is great, but only buy this if you don't mind a wobbly bed.