3 astd lg key identifier. Keeps similar keys separated by color. Will stretch to fit over most key heads for easy color identification. Rubber-like vinyl resists cracking and color fading. Superior material; pliable, but won"t break. Not recommended for ignition keys. 3 per card, large size, (standard colors: Black, blue, green, dark purple, magenta, red, and yellow) No. 16606: 3 per card, large size, (neon colors: Pink, green, orange, and yellow) No. 16615: 150 per counter display, large size, (standard colors: Black, blue, green, dark purple, red, yellow, and magenta)