Naturally Mined Slate Cubes: Each cube is made from real slate stone, giving it an earthy texture suitable for writing, shading, sketching, and classroom practice., Uniform Cube Shape for Easy Grip: The cubical design provides a comfortable hold, allowing smooth strokes and better control while writing or marking., Strong & Long-Lasting Build: Slate cubes are sturdy and resistant to breakage, making them ideal for daily school use, coaching centres, and workshop marking tasks., Works on Multiple Surfaces: Suitable for chalkboards, handmade slates, craft sheets, temple boards, and carpentry or tailoring marking surfaces., low Dust & Clean Writing: The natural slate texture produces clear lines with minimal dust, ensuring a cleaner and more comfortable writing experience.