These multi-purpose pen refills fit *most* multi-purpose pens. The INK refills are labled "Schmidt", or "MINISTAR F", OR "D MINE F" The HIGHLIGHTER refills are labled "STAR Lighter". All refills measure ~2 5/8th inches long and ~1/16th inch diameter. REFILLS ARE ON A BIG SALE - CHEAPER THAN BUYING THEM AT THE STORES! Refills Refill: Black Ink: None5 Black (+4.45)10 Black (+8.90)15 Black (+13.35) Refill: Blue Ink: None5 Blue (+4.45)10 Blue (+8.90)15 Blue (+13.35) Refill: Red Ink: None5 Red (+4.45)10 Red (+8.90)15 Red (+13.35) Refill: Green Ink: None5 Green (+4.45)10 Green (+8.90)15 Green (+13.35) Refill: Orange Underliner/Highlighter: None5 Orange (+4.45)10 Orange (+8.90)15 Orange (+13.35) Pink Underliner/Highlighter: None5 Pink (+4.45)10 Pink (+8.90)15 Pink (+13.35) Refill: Mixed Inks: None1 Black 1 Red 1 Blue 1 Orange 1 Pink (+4.45) Refill: Pencil Lead (1 tube): None1(+1.75)3 (+5.25)5 (+8.75) Refill: Eraser Cap (metal) replacement: None1(+1.25)3 (+3.75)5 (+6.25) Refill: Stylus Tip(only previous customers): NoneOrange (+1.99)Grey (+1.99)Yellow (+1.99)White (+1.99) Refill: Mech. Pencil tip for S+ 3 & 4-Way Originals: None1 (+3.00)2 (+6.00) Refill: 4 White Erasers: None1(+1.25)3 (+3.75)5 (+6.25) Refill: 4 Pink Erasers: None1(+1.25)3 (+3.75)5 (+6.25) Refill: Nitespot Ink Refills: NonePack of 2 (+3.00)Pack of 4 (+6.00)Pack of 6 (+9.00)Pack of 8 (+12.00)Pack of 10 (+15.00) Refill: S+ Nitespot Bulb Replacement: None1 Bulb (+1.50)2 Bulbs (+3.00)3 Bulbs (+4.50) Empty: None