(30) 7" Record Divider Cards - Black, Standard 20mil - 7" x 8 1/2" - #07NS85BK20 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! 20mil Thick 7" x 8.5" They're durable, and feature rounded corners to prevent jabbing yourself!