Twistables Colored Pencils put a new spin on creativity. Simply turn the ends to twist up a brilliant color. See the colored cores turn inside the clear plastic barrels. They need no sharpening. When the tips get worn down, just twist them up, and you're ready to keep on coloring. Clear plastic barrels keep them from breaking and make it easy to see how much vibrant color is left. Clear barrel also allows easy color identification. Nontoxic color pencils are recommended for children ages 3 and up.