Pilot Oil-Based Ballpoint Pen Refills, Extra Fine [30 pieces] BRFS-10EF-BRL 2700 Black [10 pieces] Red [10 pieces] Blue [10 pieces] Please let us know if you would like to change the colors. Product Details Features ・A new oil-based ballpoint pen refill with Acro Ink has been released to coincide with the limited edition colors of the "2+1 Evolt". ・This is a new generation ink for PILOT's multi-function writing instruments. ・This refill is compatible with the current main "BRF-8" series. Pilot PILOT Oil-Based Ballpoint Pen Refills Black BRFS-10EF-B・BRFS-10F-B・BRFS-10M-B / Blue HRFS-10EF-L・BRFS-10F-L / Red BRFS-10EF-R・BRFS-10F-R / Green BRFS-10F-G 0.5mm / 0.7mm / 1.0mm for multi-pens Brand】 Pilot PILOT 【Type】 Oil-based ballpoint pen refill 【Color】 Black: BRFS-10EF-B (0.5mm) Black: BRFS-10F-B (0.7mm) Black: BRFS-10M-B (1.0mm) Blue: BRFS-10EF-L (0.5mm) Blue: BRFS-10F-L (0.7mm) Red: BRFS-10EF-R (0.5mm) Red: BRFS-10F-R (0.7mm) Green: BRFS-10F-G (0.7mm) 【Size】 Total length: 67mm, maximum diameter 2.3mm 【Tip Diameter】 0.5mm / 0.7mm / 1.0mm 【Compatible Products】 Compatible ballpoint pens: Legno Maple / Legno / 4-color ballpoint pen Ridge / Rotating 2-color Brex / 3-color ballpoint pen Ridge / Rotating 2-color / 4+1 Custom Heritage / 4+1 Ridge / 2+1 Ceratec / 3+1 Ridge / 2+1 Ridge Urushi / 2+1 Execute / 2+1 Ridge / 2+1 Legno Maple / 2+1 Miyabi Emaki / 2+1 Ridge Leather / 2+1 Legno / 2+1 SR / 2+1 Slim / 2+1 Evolt Slim / 2+1 Evolt