Mitsubishi Uni Jetstream 4+1 Multi-function Pen JETSTREAM MSXE5-1000 Genuine Replacement Cap This is a set of a dedicated cap and replacement eraser. *The eraser can be replaced with Jetstream replacement lead. Please specify the color and thickness. Additional purchases and bundled orders are possible. Color: Cream Yellow (Cap only or eraser only is also possible, in which case it will be 300 yen) The eraser can also be used with Mitsubishi Pencil mechanical pencils other than Jetstream. Examples of compatible mechanical pencils include: Kuru Toga, Alpha Gel, and other mechanical pencils. Please feel free to contact us if you have any other color preferences for the cap. You can customize your Jetstream into a two-tone pen by changing the cap color. Other colors can be found at #ZJetstreamCap If you cannot find other colors in the listings, please contact us in the comments. We look forward to your comments.