This is the Aurora Purple Kurutoga Dive mechanical pencil. I bought it because it's a popular mechanical pencil, but I'm selling it because I rarely use it. I've only used it to test the writing. The Aurora Purple has a unique color scheme with a finish that changes appearance depending on the viewing angle. The eraser in the back is unused. The original box and instruction manual are included. I'm sorry, but I'm not considering lowering the price. Thank you.