1.ย High-ย quality,ย high-performanceย leadsย thatย outperformย competitorsย inย overallย strength.2. Advanced case that are easy to use.3. Envisioned design for when you buy it and when you use it.4. The quantity of 0.3 is increased from 15 to 25 pieces.5. The lineup offers a choice of major hardness (2B, HB) for all lead diameter.0.3MM(2B,HB)- 25PCS/TB0.5MM(2B,3B,4B,HB)- 40PCS/TB0.7MM(2B,HB)- 40PCS/TB0.9MM(2B,HB)- 36PCS/TB