This single-ended Hand Bobbin Winder is beautifully engineered by Schacht Spindle Co! It is belt driven with a self-lubricating bronze bearing and has a tapered shaft that will accommodate a variety of bobbins up to 6 inches long. A clamp incorporated into the design means you'll never have to hunt around for a ﾓCﾔ clamp again. This winder measures 6 x 11 x 10 inches and weighs 2 pounds. Use it with Schacht's 4-inch Plastic Bobbin and 11-inch Slim Boat Shuttle.