Because I was stamping, I used Neenah Solar white 110 gm.
Note: This paper is thick and it can crack when folding this 3D project, so you need to be gentle. Avoid using a bone folder. Use your hands to fold over the scoring lines first and burnish using a Tonic card creaser.
I use a piece of black craft foam on my stamping platform that provides cushion and you will get a better impression.
I placed a piece of paper over the black foam on the platform to avoid inking my artwork in undesirable places.
Top Tips
Stamp the larger bold images with light ink colors and the smaller bold area with darker ink colors.
You can only use two bold larger images in the set to create a tone on tone compositions as I did to stamp the envelope in the picture below.
Get a stamping shammy to clean the stamps.. this was a lifesaver.