No sharpening or label peeling needed on these crayons with a break-resistant, clear plastic barrel that shows crayon supply. with built-in eraser. for ages six and up; ap nontoxic. no sharpening or label peeling needed. these crayons extract and retract by twisting their ends. the break-resistant, clear plastic barrels show crayon supply. with built-in eraser. for ages six and up. global product type: crayons-twistable; crayon type: twistable; color(s): assorted;