crayola 18ct twistables colored pencils (2 pack) crayola testable colored pencils require no sharpening. when the tips get worn down, just twist them up and youre ready to keep on coloring. the clear plastic barrels keep them from breaking and make it easy to see how much vibrant color is left. each colored pencil has a clear barrel for color identification and for viewing the twisting action. colored pencils may be stored in a reusable vinyl pouch.