A rule for the kids! One can only imagine the light in the little ones' eyes when they found that Santa had left them a brand spankin' new Keuffel & Esser slide rule in their stockings, just like mommy's and daddy's. What red-blooded american kid wouldn't be thrilled to own this fine instrument? Like the Lutz 102S, the back of this rule isn't scanned because there's nothing printed on it. Even the fancy decilon-style endpieces are just sorta glued onto the front of the rule. Still, even for a cheap (it's still cheap, too: this one cost a measly fifty cents) all-plastic rule , it's kinda cool. The green printing and the endpieces are pretty nifty, and it seems pretty well-put-together for what it is. It's kinda flexible, which makes it just perfect for whapping people on the head with. i'm fairly certain this was a design requirement, given the target market.