I would look for other brands, also Amazon seems to ship these with broken plastic tops.
594362
I don't think this works as well as other bug sprays.  Also, Amazon can't seem to figure out how to ship bug spray without the plastic tops breaking.  This has happened twice
3372450
Mine arrived broken.  It wasn't a big deal so I glued it and used it.  The suction cups do not hold on too long, it could be because my kitchen sink is brushed stainless steel, I'm not sure.  The plastic is thin and brittle.  For the price, you get what you pay for.  But if cost is not a problem, they make better quality ones.
2980514
Like others on this thread, I ran into the same problem. The black plastic gears at the base just broke into many pieces. I saw the problem coming and tried to avoid it by ensuring that the blades were properly lubed and turned. To no avail. One day it just crumbled.

I am sticking with blenders with a metal coupler/gear assembly.
524753
The first time we purchased these they arrived with one broken lid.  As they don't cost much we did not return them.  They work really well for lunches and dinners and the first set is getting worn out, so we ordered a new set. The new set arrived and 5 of the lids had broken corners.  We have asked for a refund and we are shipping them back.  None of the lids should be broken - but 5???  Very disappointed. They were shrink wrapped at the factory that way.  Amazon shipping was perfect. Manufacturer needs to fix this problem.  We would pay a bit more NOT to have broken lids.
3178679
Probably would be fine, but they arrived with several broken and I could not find a way to get the broken ones replaced. I returned them and ordered something else.
4265379
I capped a bottle with the first and we noticed it had cracked by the next day.  Threw on cap number 2 and it too was cracked by the next day.  I sent them all back and am now looking for a replacment.
2704575
Ive owned many commercial  tumblers in the past. And needed to replace my old sets. Upon receiving the new one. There were defects. Almost all the glasses on the bottom had pits/ mini cracks where the plastic hadnt been smoothed out... Little peices of plastic broke off in the area. In deed they were very small but long term they could  be an issue. They are a pretty generic no named brand.  I suggest buying Tarhong, Cambro or Carlisle brand. They are more expensive but take a serious beating and keep on going.
4029417
I have had this replacement top for less than 6 weeks, and the plastic that goes around the bottle neck broke. I should have listened to other reviews and bought the flex cap.
830988
I buy several ones, how ever the one on top is broken when I ship them, seems they are not strong enough
1452379
Guess I'm just unlucky! There are small cracks on the lids of two of the three I bought a long while ago. There's really no reason for this to happen when they're being used properly, except for poor workmanship / material. We only have two adults here; I haven't even started to use them since I want to finish the staining. Now I've to figure out how to use glue / filler to repair the cracks. Made in USA doesn't guarantee much sometimes. Hope there won't be more problems with the chests.
430975
I bought this back in May and am on here today to find a replacement.  The top broke and I don't think I probably use it more that once a week. I looked this up to make sure I didn't order the same brand.
1212695
When i try to screw them off it justs wastes the plastic on it and it doesnt move. the other day while driing they came off too. Buying other brands
3960333
One got broken at arrival, and other don't perform as well as the ones a used to buy on the store, I'm not buying again, rather to have a ast warranty at my local store, and avoid these problems in case of failure.
1774655
The clear plastic seems to be brittle.  My order arrived and BOTH had fractures/cracks in the plastic.  I'd definitely not recommend buying this one....  Maybe look at the 100% metal/stainless version.  Probably would be worth the extra cost to have one that didn't crack so easy!
392853
One of them is broken. Doesn't like the plastic cap.
3921115
Came with a broken plastic top, made of the thinnest plastic possible. Also, the material is covered in a "fuzz" thats attached to the fabric. Lastly, we can get the tilting mechanism to work. I gave this as a gift and negelcted to pull it out of the box (as it is rather large) before giving it to my wife. When she opened it to discover it had a broken top, fuzz attached to the fabric, and a tilt that didn't work she was disappointed. I cannot return it because I ordered it more than 30 days ago.
55421
The lids on all of my containers broke/cracked. I will try to reach out to the company and Staples, where I purchased the storage containers to see if there is a resolution. The quality is certainly no comparison to Rubbermaid. I really don't want other customers to experience the dissatisfaction that I have.