Pulley block set is simple to use, easily cater to different experimental needs, making it versatile tool for students and teachers. Pulleys are easy to install and use, and the ropes provided make it easy to suspend and operate. The bracket is stable and firm, ensuring stability and safety during experiments, suitable for laboratory, school, classroom. Features -Color:Silver -Material:Galvanized iron, nylon -Size:34.00X15.00X8.00cm/13.36X5.89X3.14in -Note: not included dynamometer or weights. -Pulley block set includes single and double pulleys, bracket and rope, for easy hanging and operation during physics and mechanics experiments. -The rope is easy to suspend, simple to use, proper for a variety of experimental needs. -The bracket is stable and firm, ensuring stability and safety during science experiments. -Proper for conducting a wide range of experiments in physics and mechanics, suitable for teacher, student. -Made of safe material, delicate workmanship, sturdy and useful, suitable for laboratory, classroom, school. Package list: 6 x brackets 6 x bases 12 x single pulleys 12 x double pulleys 6 x ropes 120cm 6 x ropes 60cm x hooks