Gina K. Designs -. Designs Ink Cubes are acid-free and PH-Neutral. They are convenient for travel and easy to store. They are an economic way to collect lots of colors and they coordinate with our exclusive card stock. This set includes: Lemon Drop Jelly Bean Green, Dusty Rose, Lovely Lavender, Ocean Mist, Innocent Pink, Applemint, Bubblegum Pink.