Mitsubishi uni Jetstream 4+1 Multi-Function Pen JETSTREAM MSXE5-1000 This is a set of a dedicated eraser cap and replacement erasers. *Additional purchases and bundling are possible. Color: Champagne Gold (Eraser only, cap only options are also available) For those who use the MSXE5-1000 and have lost their cap, want to customize it, or have run out of erasers, this is for you. Also, the erasers can be used with mechanical pencils from Mitsubishi Pencil other than Jetstream. Examples of compatible mechanical pencils include Kurutoga, Alpha Gel, and other mechanical pencils. If you have any other color requests for the cap, please feel free to contact us. By changing the color of the cap, you can customize a two-tone Jetstream. Other colors are available from #ZJetstreamCap We will ship promptly, and basically ship the same day. Please feel free to consult with us about anonymous shipping, etc. If you can't find other colors in the listings, please contact us in the comments. We are looking forward to your comments.