Hardness Degree: HB FSC-certified wood from sustainable forestry 100% recycled cardboard packaging, to reduce impact on the environment Product transport and packaging are entirely plastic-free, reducing waste Wooden hexagonal barrel is comfortable and prevents rolling Graphite leads provide smooth, consistent lines Suitable for everyday sketching, drawing and writing 2.2mm leads use secural bonding (SV) process for high break-resistance, reducing sharpening time Non-toxic and safe for kids to use