Frixion Ball 4 Series 10,100 or 1000 Pens Per Order ($ 8.06 USD per pen) 0.5 mm 4 Colors: Black, Red, Blue, Green Refills Available IMPORTANT Refills for Black, Red and Blue come in a pack containing 1 refill for each color (10 or 200 packs per order $ 3.03 per refill pack) Refills for Green come as a SINGLE refill (200 singles per order $1.21 per single refill) Side Lever Type Comport Grip Ships from Japan Erasable Ink 10,100 or 1000 Pens Per Order ($ 8.06 USD per pen) 0.5 mm 4 Colors: Black, Red, Blue, Green Refills Available IMPORTANT Refills for Black, Red and Blue come in a pack containing 1 refill for each color (10 or 200 packs per order $ 3.03 per refill pack) Refills for Green come as a SINGLE refill (200 singles per order $1.21 per single refill) Side Lever Type Comport Grip Ships from Japan Erasable Ink Frixion Ball 4 (Black) Frixion Ball 4 (White) Frixion Ball 4 (Pink) Frixion Ball 4 (Light Blue) Frixion Ball 4 (Champagne Gold)