Colored pencils come in many shapes, colors and forms. They're permanent or water-soluble, hard or soft, round or hexagonal, bright or dull. We've always taken the position of only stocking colored pencils we believe in because as we well know, there are a lot of bad ones out there. Perhaps the most special of the bunch are Caran d'Ache Prismalo--not just for their function but for their history. They were first introduced in 1931 as the world's first water-soluble pencil, meaning that the binders in the pencil allow the color to disperse when met with water. Though water-soluble, or watercolor pencils are easy to find these days, Prismalos are not available in the US apart from a set made for the brand's 100th anniversary.