COLIBROX Set of 4 Comforter Duvet Donuts. Prevent Bunching & Shifting of Comforters and Duvets, Keep Comforter Corners in Place. Fits Types of Duvets and Comforters Without Harming Fabric.

Been using them for a month so far. Easy to install and doesn't damage the duvet or comforter. Internal comforter still gets bunched up a little in between the corners, but it's WAY better now.

They're better than nothing, marginally speaking. I could see these being a better value if they were a little grippier, possibly. There are other alternatives that are more permanent fixtures to a duvet and comforter: go with those more permanent fixtures.

Great pieces. Helped with my duvet and its cover. I'm very happy with them.

Awesome invention

These work great to keep the duvet where it is supposed to be within the cover. They are a little difficult to get on sometimes, but I haven't had any problems with them falling off or coming apart during use. I have been using them for several years and have also not had any problems with breakage. Because they are clear, they aren't obvious and if you hide one part on the inside of the duvet, you cannot see them at all when the bed is spread up.Edit: I only use a lightweight duvet and can imagine that they may not hold as well on a heavy weight.

I've tried a lot of different styles of these, and this is by far the best. It holds strong, and does not damage the comforter.

I bought two packages of these after I read some of the other reviews. These work really well if when you are attaching the comforter to the duvet cover you push back the padding in the comforter so there is less resistance after you put the doughnut together and this will keep them from popping off. I put 4 in the corners and four in the middle of each side.If your comforter slips around in the duvet cover these are a great fix to the problem!

Great weight for a "cold" Texas night- meaning, about 40 degrees outside. It's lightweight but warm- you could almost use it as a bedspread. It's a bit small fitting an xl King ( temperpoedic) but only on the sides and it doesn't show.

Great idea but were difficult to fix on as duvet was quite thick