Yes, it is a clamp with a wheel on it. Pure brilliance, you could of course, go on down to home depot, grab some clamps and some wheels and make your own. This flash of light comes from yaeliv over in Israel and is available on Etsy
A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. Robert A. Heinlein Lady Vivamus
