Tired of keychains that fail to measure up? Well, you are going to love this mini ruler keychain! Measuring at 4.18" x 1.18" x 0.06", this keychain features a nifty ruler and comes equipped with a durable key-ring attachment, making it easy to carry on your existing keychain. Excellent for everyday use, this ruler keychain belongs in every pocket, purse, handbag, or backpack. With customization offered, you can add a brand name, logo, and message. Purchase this mini ruler keychain today, because it measures up to expectations!