I don't think anyone can have enough overlays, especially cardstock. Each grayscale variation contains 1 smooth and 2 creased papers. This combo contains both the Light Cardstock and the Dark Cardstock products each containing 9 full size (12 x 12) highly detailed JPG files from my own personal stash that have been saved at 300 dpi.
These overlays are ok for commercial use along with S4H, S4O, and Personal Use friendly. You may also use them for creating freebies.
No credit required for the use of these items, but it's definitely appreciated.
NOTE: The Light Cardstock was part of the 2013 Next Designer week 1 prize package and the Dark Cardstock was part of the 2013 Next Designer week 2 prize package.