No maintenance, will not rust, self-adhesive. No. GR-10/A: Character: A, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/B: Character: B, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/C: Character: C, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/D: Character: D, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/E: Character: E, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/F: Character: F, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/G: Character: G, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/H: Character: H, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/I: Character: I, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/J: Character: J, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/K: Character: K, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/L: Character: L, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/M: Character: M, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/N: Character: N, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/P: Character: P, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No. GR-10/Q: Character: Q, Material: Aluminum, Type: Self-Adhesive, Character Height: 1.5", Character Color: Black No.