Features: 1.A listing for 10 Hero compatible ballpoint pen refills with black ink. 2.A practical buy for Offices， Schools， Shops and other work places. 3.They are stainless steel and they have with a 0.5mm point.  Specifications: 1.Material:Stainless steel 2.Ink cartridge : International standard 3.Size:0.5mm 4.Length:11cm 5.Color:black  Package Includes: 1 x Ballpoint Pen ink Refills