Pentel Ballpoint Pen Refill EnerGel 0.5mm XLRN5-A Black 10 Pieces 800■152 Outer box for the ballpoint pens is not included. Color: Black Ink Color: Black Brand: Pentel Material: Polypropylene Product Dimensions (Length x Width x Height): 18.5 x 5.8 x 2.2 cm About this product: [Size per piece] Width 6mm x Depth 6mm x Length 111mm [Weight per piece] 2.6g [Material] Shaft = PP, Pen tip = Stainless steel [Ball Diameter] 0.5mm (Extra Fine) [Ink Color] Black A 10-pack of refill type replacement ink compatible with some of the EnerGel series. This is a 10-piece pack of black refills compatible with the refill type EnerGel, knock-type EnerGel, EnerGel X, and EnerGel Tradio, which are part of Pentel's popular EnerGel series of gel ballpoint pens. Each refill is individually packaged inside.