The Blackboard Cube pack from Hero Arts contains 4 ink cubes that are perfect for a variety of craft projects. The ink cubes are 1.25in x 1.25in size and feature water based, acid free, archival and fade resistant ink.Available in a variety of shades, these cubes feature beautiful black, soft granite, charcoal and unicorn white colourways.Features & Benefits Includes 4 Ink Cubes Water based, acid free, archival & fade resistant Specification Size: 1.25in x 1.25in Colour: black, soft granite, charcoal & unicorn white