Post It Notes 3x3 Colors of the World (Black) Single color packs are great for creating murals, or color-coding. Super Sticky adhesive holds stronger and longer, yet removes cleanly. Post-it Super Sticky Notes Stick Practically Anywhere! All Post-it Notes are recyclable. All Post-it Notes are SFI Chain of Custody Certified. Paper comes from well-managed forests, where trees are replanted. 3 in x 3 in, Black. 5 Pads/Pack, 80 Sheets/Pad.