Pentel refill leads come in packs of 12 in a sturdy, protective plastic case making them perfect to throw in a pencil case or bag to have ready at all times. Pentel refill leads are compatible with all mechanical pencils of the same lead width. Break-resistant leads mean refills last longer and don\'t need to be replaced as often, allowing you to get more work done. HB leads give you the perfect balance between deep colour and hardness, ideal for sketching and writing on surfaces such as paper and card. - Brand: Pentel - Lead width: 0.7mm - Lead grade: HB - Tube of 12 leads - Universal refills - Slow wear rate