Smart Stylus is just a little over six inches long from end to end, and is chunkier than most styluses we’re used to seeing these days; it makes sense for little hands. The body is mostly white plastic, although the gray grip towards the bottom has a soft-touch finish. There are capacitive tips at either end, and a power button above the grip. The tip at the back end serves double duty: it can be used as an eraser when the stylus is flipped…