1)Crystal clear overlay enhances custominserts on front cover, back covr and spine.
2)Nonstick, archivalsafe material won't liftink or toner off of printed pages.
3)Open type DRing mechanism lets you open,close and lock your binder in
easy step.
4)Gap Free feature prevents ring misalignmentso pages turn smoothly.
5)Min order quantity:1000pcs