(30) Black 20mil Record Divider Cards for 7" (45 RPM) Vinyl Records - Sloped - 7" x 8 1/2" - 07NS85BK20DI Reusable - Simply flip over! 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" - Slanted on One Side They're durable, and feature rounded corners to prevent jabbing yourself!