Compatibility:Designed for the Pilot LFBK-23EF FriXion Pen, these refills ensure a seamless writing experience. Erasable Pen Costco|Pilot G2 Pen .38|Erasable Feature:Enjoy the convenience of an erasable pen with the Pilot BLS-FR7 FriXion Refill, perfect for quick corrections. Durable Material:Craf...