Sell Pilot ACROBALL refill for 4in1 0.7 best price

PILOT REFILL FOR ACROBALL 4in1 This is one 0.7 mm black Acro Ink ballpoint ink refill for the pens listed under Compatible Products. The ink is oil-based, produces satisfyingly dark color, and provides a smooth writing experience. BVRF-8F FINE 0.7 ONLY SOLD PER PC. Compatible for Acroball Multi Color Pen Only. Available in 0.7mm only. The oil-based ink has 1/5 of the viscosity of conventional oil-based inks. The unique blend of ink and lubricants allows the ball at the tip of the pen to rotate smoothly by reducing friction. This creates an enjoyable, non-skip writing experience. The ink is satisfyingly pigmented and is also water-resistant.