DURABLE MINI CHALK STICKS FOR LITTLE HANDS: Nanomaterials make these 10-15 times more durable than regular chalk, strong and less prone to breakage. The size of each sidewalk chalk in bulk is perfect for small hands, providing a comfortable grip for easy handling. DUST-FREE CHUNKY SIDEWALK CHALK: Our chalk is excellent for blackboards, sidewalks, backyards, driveways, playgrounds, brick walls, stones, etc. Whether it's children's painting creations or a teacher's classroom instruction, it's sure to be fun. Also helps improve children's color identification and color uniformity in craft drawing activities. WASHABLE & EASY TO CLEAN: The water-soluble materials make the chalk easy to wash off, even if painted on clothes, easier to clean than regular chalk. You can wipe it off with a damp cloth or wet sponge, keeping children's hands clean. MULTI-COLOR CHALK SET FOR GIFTS: 10 colors of sidewalk chalk in bulk, including 2 red, 2 pink, 2 orange, 2 light green, 2 blue, 2 dark green, 2 yellow, 2 white, 2 purple, 2 light pink. Our colors are more saturated and bright. Give children fresh air playtime and unleash creativity and imagination through painting; a wonderful gift for any child!