Double long pulley, 5.75" long Larger wheel measures 2" in diameter, smaller wheel measures 1.5" in diameter Enclosed within a metal frame Hooks on both ends Useful in the classroom, at home or in the garage Double long pulley, 5.75" long. Features two wheels of different sizes. Larger wheel measures 2" in diameter, smaller wheel measures 1.5" in diameter. Wheels are surrounded by a metal frame, and features hooks on both ends.