FLOATUNE Ballpoint Pen Refill 0.4mm Black 【Set of 10】 Pentel Ballpoint Pen Refill for FLOATUNE (Flow Tune) Refill 0.4mm Black XZRN4-A 【Set of 10】 1500 Outer box not included Product Description Comfortable writing feel with a sense of floating - Frictionless ballpoint pen 【Description】 ○ Flow Tune ink cartridge. Soft writing feel, new writing sensation "That writing feel, a sense of floating." Flow Tune is a newly developed oil-based ink ballpoint pen that pursues a light writing feel and comfort. A frictionless ballpoint pen that minimizes friction during writing. The ball glides smoothly on the smooth ink with high cushioning, providing a stress-free writing experience. For everyone who seeks flexible and personal expression, the frictionless ballpoint pen. 【Details】 ・Ball diameter: 0.4mm ・Ink color: Black ・Ink composition: Oil-based dye ・Individual packaging: Poly sheath ・Material: Shaft...PP, Pen tip...Stainless steel ・Body size: 6 x 6 x 111mm ・Weight: 2.7g