Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: In what country are the double-sided shower curtain hooks made?
Document: These are too tight for my shower rod. The idea of a double-sided hook is nice, but they don't slide. I can force them on with difficulty, but then can't slide my shower curtain open and shut. And I don't think that my shower rod is unusually large - there's no problem with any other shower hooks.
Good quality product - I wanted double-sided hooks for my shower curtains, but didn't want metal ones since they would clash with the existing setup. These did the trick very nicely.
I wanted basic shower hooks that would not rust and these fit the bill. The double sided hook is a nice feature. I only gave 3 stars because they are quite basic and nothing fancy.
These double-sided hooks are attractive and very easy to use. Highly recommend for liner + curtain combination; will buy again.
I searched and searched for white double-sided hooks and I'm so glad I came across these. They slide nicely along the rod and both the curtain and the liner stay on the hooks. I am not a fan of plastic but I am pleased with these.
I have had a hard time finding double sided (and plastic) hooks and these are perfect. No squeaking on our metal curtain rod. They look great, are easy to install, and you can change out a curtain liner without taking the whole thing down. Great buy!
I was afraid these double edged shower curtian hooks would be cheaply made- & not support the two curtians I planed to hang on them- But I decided to  try them- The price was great- However-they are crafted of very good material. Easy to use- Just as pictured- I recommend seller for product quality,fuction, arriving on time- shipped for safe ship- & price-Granny
Exactly what I wanted! It works well with a double shower curtain and is just what I needed for my shower.
I like to wash the microfiber shower liner frequently and it was always a  hassle to remove and reinstall with my old rings. I just wanted plain white double hook rings, which can be somewhat hard to find. These are exactly what I wanted and, now that I know how great they are, I will buy another set for the other shower.
These hooks make it very easy to take shower curtain and liner off for washing. Couldn't find them in plastic anywhere locally.
Answer: Sorry, the packaging is gone and there are no markings on the hooks. I would guess USA or China.