New feature, now comes with a spine 

Unprinted blank matte white jacket for 12" vinyl records. Holds a 12" record with an inner paper sleeve (inner sleeves are sold separately). Made in Canada with white 20pt board, with the uncoated matte side facing out so it's perfect for silkscreening. 10 pieces

Dims: 12.25" wide x 12.3125" high x 0.125" spine