I use both of those items in my Kraus :)

Thanks for the tips scrappy! I like the Kohler cutting board, but it is so very heavy.

I also use the Bolhomen colander on my Blanco sink. It is not a perfect fit, but close and secure enough for dish draining.

Errant, which Kraus sink do you have? I have the 30" near-zero-radius with a very slight reveal, and wonder if these items would fit.

What do you use that long and narrow colander for?

I just got a roll up dish drainer at BB&B and it fits well. I got it because the microfiber drying mat I have, while it works well, doesn't store easily.

The colander is great for scrubbies, dish brush, narrow items that need to drip dry.

The items have about 3/4 inch lip on each end so you can see the exterior measurements on the ikea website and see if it will fit your sink (any sink that has an opening smaller than the item by .5-1.4 inches should work). The lip on the cutting board is very clever to allow usage over any sink that it fits into.

For the Stages sink, the wooden board lip is too long but the cutting board fits well into the integral sink lip sideways.