The all-clear one is a brand new, unopened, 360-degree, double-sided SlideNote, A4 size. The black and orange line one is the previous model, so it's a single-sided type, A4 size. I used it for about six months. I kept documents in it in my desk drawer, so there are no noticeable stains or scratches. - Model Name: SlideNote - Size: A4 - Number of Pages: Holds 30 sheets of copy paper - Features: The clear one can rotate 360 degrees - Brand: pagebase Thank you for looking.