Sanwa Supply Book Stand Data Holder DH-317W I am selling this item as I purchased it new and used it for a while, but have not used it recently and have been storing it. The following information is from the manufacturer's website: Compatible sizes: A4, B5 Size: W290 x D240 x H335mm Effective plate size: W290 x H185mm Weight: 300g Material: Plate/ABS resin Load capacity: Approximately 5kg The angle can be adjusted in 3 steps. It supports books up to 20mm thick, and pages are easy to turn even when clipped. The clip can be extended upwards, allowing it to hold A4 size documents vertically. You can clip a postcard-sized calendar or photo in the center. I don't think there are any noticeable stains, but this is just my personal opinion. If you are concerned about the feel of use or small scratches, please refrain from purchasing. Thank you. #SanwaSupply #BookStand #DataHolder #BookHolder #DH-317W