Frixion Ball 4 Type: Multi-color gel ink ballpoint pen Color: Champagne Gold Size: Maximum diameter φ 13.8mm, Total length 145mm Tip: 0.5mm (extra fine) Mechanism: Slide lever type Ink: Frixion ink Ink colors: Black, Red, Blue, Green Price: 880 yen (800 yen excluding tax) Condition: New, unused *Price negotiation not accepted The Frixion Ball 4, a 4-color ballpoint pen that erases with friction. The Frixion Ball 4 allows you to use four colors in one pen and erase repeatedly, making it a highly convenient 4-color ballpoint pen. Ink colors are black, red, blue, and green. The pen uses the original lift clip. It can securely clip onto thick items and is durable enough to withstand being clipped 100,000 times.