E15. Black Pentel Clic Eraser. Grey metal case.
For erasing ink from paper. The narrow size makes it ideal for corrections. It is gritty and works for tough corrections but is surprisingly gentle on paper. A neat, well designed tool. Highly sought after, but almost impossible to find in the USA. (This eraser is NOT for erasing pencil guidelines. For that, use E08. Factis Black Eraser or E22. Tombow Mono Zero.)
Clic Eraser Pentel ZE33 For refills, E16 For Hypereraser, E10