Pentel Ain Stein Mechanical Pencil Lead (0.3/0.5/0.7/0.9mm)

STEIN stands for "Strongest Technology by Enhanced SiO2 Integrated Network". The Pentel Stein Enhanced Silica Pencil Lead features a reinforced silica core that makes the Stein Pentel's smoothest, strongest, sharpest pencil lead yet! The lead is also designed to be smear resistant, allowing you to have beautiful, clear writing and smudge free hands (great for left-handed people).

• About 10% stronger than existing Pentel leads 
  thanks to a ceramic cell structure
• Supplied in convenient swivel-top tubes
• Smoother than other refill leads on the market
• Suitable for all Pentel automatic pencils
• Available in B, 2B, 3B, 4B, HB, H or 2H
• Made from 92% recycled material (excludes refill leads)

0.3mm- contains 15 pieces of lead

0.5mm- contains 40 pieces of lead

0.7mm- contains 40 pieces of lead

0.9mm- contains 36 pieces of lead