A popular item used in the 1950's and possibly sold by traveling salesman. The Electro Static Cleaner Pat. 2149556 picks and holds dust when cleaning clothing, uniforms or upholstery.  It cleans by magnetic attraction, made of non-breakable Pyroxenoid, with ordinary care will last a lifetime as stated in the instructions still in the box.  The cleaner is a tortoise shell color and has a small brush and instructions included in the box.  It measures 8 by 2 3/4 inches.  Perfect for Wool and a very nice collectors' piece and this item functions as described.