10 Divider Cards for 12" LP Vinyl Record Album Collections Strong Black Plastic Indexed Tab (+ 1 Free dj Magnet) Organize your 12" vinyl records. Divide how you want...alphabetically, release date, artist, genre, label. Thick .040 gauge polyStyrene plastic. 13 1/8" including the tab x 12 1/8" (33.3375 cm. x 30.7975 cm.). Use with records stored on a shelf or in a bin/crate/box. Blank on both sides (without print, website, or ads). A-Z also available in both black and white for shelf or bin stored 12".