A-Z Black Alphabetical Record Dividers Black Professional / Collector / Professional Cards 12-inch 33rpm 33 LP Vinyl Album Organizers (Lettering on BOTH Sides of tab.) Archival quality full 40 point black high density Polyethylene Plastic - These work great in record storage boxes, xpedits or cabinets with shelving - Easily visible to help sort your vinyl LP's and Laserdiscs - Exterior Dimensions: 12-1/8" x 13-1/8" Tab Measures 6" x 1" + Lifetime Warranty & Guaranteed Customer Support for the Lifetime of this product.