Pilot Refill Fine 0.7 Black BRFN-30F-B / 3 pieces 0.7mm refills for Pilot's low-viscosity oil-based multi-color ballpoint pens. 900■305 Oil-based ballpoint pen (Acro Ink) refill. 0.7mm fine black. Main applicable products are high-priced ballpoint pens of 2,500 yen or more. Product Description This is a refill for Pilot's low-viscosity oil-based ink. It can be used by inserting it into the body of a multi-color ballpoint pen. It can be easily refilled, and the main body can be used as is, making it environmentally friendly and economical, and a wallet-friendly item. Product Information [Specifications] ● Specifications: Oil-based ballpoint pen refill (for high-priced writing instruments) ● Ink color: Black ● Ball diameter: 0.7mm (fine) ● Size: Maximum diameter 6mm x total length 86.8mm ● Order unit: 1 piece ● Compatible ballpoint pens: Cavalier / Custom 74 / Custom Kaede / Custom Heritage 91 / Custom Kiriko / Custom Enju / Capless ballpoint pen / Grance / Grance NC / Stanza / Stanza Carbon / Stanza Wood Shaft / Celemo / Timeline <FUTURE> / Timeline <PAST> / Timeline <PRESENT> / Fumiraku / Maki-e / Legance / Regno / Heart Sutra / Hiramakie ● Compatible ballpoint pen product numbers: BC-250R / BCA-3SR / BCM-250R / BFU-5SR / BFU-7SR / BG-500R / BGN-1MR / BGNC-2MS / BGNC-5SR / BK-1000K / BK-35SP / BKK-1000R / BKK-500R / BKL-12SR / BKV-2MK / BKV-3MP / BKV-3MS / BKVH-1MR / BKVH-5SR / BLE-250K / BST-12SCB / BST-5SR / BST-8SK / BSTN-2MP / BTL-3SR / BTL-5SR / BTL-7SR <Je