The PortaInk Inserts fit neatly in the back of your PortaInk compartments to keep those smaller ink pads easily accessible at the front of the holder.
This kit includes 24 PortaInk Inserts.
You'll want to purchase these inserts if you're using the following ink pads:
Dimensions of the slots with the Ink Pad inserts are: 1" high x 3-7/8" wide x 2-7/8" deep
PortaInk Spacers is another alternative for storing smaller ink pads in your PortaInk.