Square Deal Recordings & Supplies 30 Black Heavy Duty 30mil DVD Case Divider Cards #DVNS85BK- 5 5/8" x 8 1/2" (Section Separators/Dividers / Bin Cards/Separators) Reusable - Simply flip over or turn upside down! Easy to label with a permanent marker or affixing a label. You can even turn them upside down & reuse! 30mil Thick 5-5/8" x 8-1/2" They're durable, and feature rounded corners to prevent jabbing yourself!