This is a graphite mechanical pencil by Staedtler with retractable lead sleeve. Lead sizes available are : 0.3 mm, 0.5 mm, 0.7 mm, 0.9 mm. This writes with sharp and clear lines and has a rubber grip for easy and relaxed writing. Cushioned lead provides additional break-resistance. The other end has a PVC and latex free eraser.Easily refillable, uses B leads. According to ISO color coding.