Catalog number: LFBKRF50EF-2B Features: ● Replacement lead for the Friction Series that disappears when rubbed. ● Compatible with Friction Ball Knock and Friction Ball Knock Zone. ● Equipped with "Premium Friction Ink" that writes "darker and longer" than the company's previous products. ● Higher concentration than conventional friction ink! (Black 30%, red, blue 15%) Also increased ink capacity (70% increase) Uses: ● Writing on paper Specifications: ● Lead diameter (mm): 0.5 ● Ink color: Black ● Writing line width (mm): 0.25 ● Friction Series Material / Finish: ● Barrel: Stainless steel + resin Caution: ● Do not use on documents, addresses, etc. that should not be erased. ● Do not place in direct sunlight or in high temperature locations. ● Ink becomes colorless when the temperature exceeds 60°C. ● At around -10°C, erased handwriting may return. ● Depending on the type of paper and the characteristics of the printed matter, it may not be suitable for erasure.
