The end caps are metal too!
929638
I accidentally tightened the end of my old hose too hard to the shower head that the plastic cracked and would leak.  I got this because it's all stainless steel but even the end caps are metal as well.  People who are reporting that this still leaks problem have 2 problems that are user error:  They didn't properly use the rubber grommets that you have to insert in the ends, or they didn't correctly apply the plumbing tape (I did not need to do this).
1726055
these are aluminum!  don't be disappointed!
3765248
They are not AS metallic as shown on the picture however you can tell metallic is in them once they are blown up
1225981
They are all metal and easy to mount. More than I expected and very pleased. I will definitely purchase more as needed
1596773
Do not have end caps. Not bad for the price...
3140027
Other than the grips (plastic) and bow (fiberglass?), it's all metal and is working quite well.  The grip will need to be lightly sanded to remove a few sharp (not terribly sharp) edges. Definitely not a toy.
694787
Make sure you take the plastic caps off the ends before use. Some other people said they did not fit, but that is only if you do not remove the plastic caps before use!
1004724
The caps on these glass bottles are plastic, with metal covering the OUTSIDE of the cap.  The part of the cap which contacts the contents of the bottle is plastic.  If you intend to use these glass bottles because plastic bottles are inappropriate for your application, don't choose these bottles.  I needed glass bottles with REAL metal caps (they do exist), so I returned these (and also submitted a product correction report).  The bottles themselves are okay, the protective sleeves are nice. I only wish the caps had actually been stainless steel as the product description claimed (would have been five stars).
2602825
It's all metal and well built.  For the price, I am impressed.
1324069
In an age of plastic and polys, it is refreshing to see some are still using real products like steel, brass and rubber.  Should be way more dependable in my application.  I am happy.
1243980
Great quality at a good price! All metal components.
4049026
I like these caps.  They are not quite as nice as the metal ones, but you are far less likely to think you have a real round.  I'd buy them again.
2660534
It looks OK, but since it is not solid, it has end caps to cover both ends, some of the end caps are loose.
4825676
Good quality metal and finish. Need to use some Krazy glue on the back of the 3M stickers because the 3M backing tapes aren't strong enough to keep these panels in place. Otherwise they are excellent fit/finish and look factory installed. They are real metal too.
4462062
Purchased this one over similar pumps because end was metal and not plastic.  Plastic threads will eventually get messed up so I think this one will outlasts the other pumps.  Only time will tell I guess but I find it worth the extra money if only for the end piece.  Only drawback is unless you can purge hose of oil it will eventually end up dripping out of end of cap.  So might want to put into ziplock bag or old butter dish to cut down on any messes.
592186
nice forks but they could use some chrome caps in the top of the legs. They come with some black plastic ones.the best I have found are some stainless steel caps here is a link if you want metal end caps too. get the 30mm ones it will take a little forch but it will fit.(from China) [...]
992757
all Brass metal and not that cheap plastic which is awesome! no defects and so far seems to be a great product overall.