Pressure sensitive backing attaches securely to almost anything - paper, wood, plastic or metal.
S-23586 4 1⁄2 x 5 1⁄2"
S-23585 4 1⁄2 x 6
S-2590 7 1⁄2 x 5 1⁄2"
S-23582 4 1⁄2 x 6
S-23583 7 1⁄2 x 5 1⁄2"
S-23584 5 1⁄2 x 10