TWSBI Diamond 580 ALR Black Fountain Pen, Piston Fill, Fine (F), TW100772

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. [Brand] TWSBI [Series] Diamond 580 [Nib] Stainless steel [Mechanism] Main body suction type [Size] Length: Approx. 142mm (closed) / Approx. 175mm (writing) Maximum barrel diameter: Approx. 13.1mmφ Cap diameter: Approx. 14.3mmφ (excluding clip) Weight: Approx. 30g [Accessories] TWSBI original box / instruction manual / 1 mini wrench / 1 mini grease The plunger fountain pen allows for easy ink filling of large quantities. Its large-capacity filling mechanism makes it ideal for long writing sessions and for those who frequently use fountain pens. The glossy, transparent barrel makes it easy to check the internal condition and ink level.