Pilot FriXion Ball 4, 0.5mm

This is a 4-color Frixion ballpoint pen with black, red, blue, and green ink. The ink is extended with a slide lever for writing, and erased with the eraser located on the cap. The clip uses a lift clip design, which securely holds even thick materials and can withstand 100,000 uses without breaking. *Not suitable for official documents or addressing envelopes.