DescriptionAre you looking for a professional, yet affordable pulley set? Are you in search of a sturdy, trustworthy pulley that can do multiple jobs? If yes, look no further Our professional pulley set must meet your needs. It is one of the best choices for you.Features- Color:As shown- Material: Plastic- Size: About11.50X4.00X1.00cm/4.52X1.57X0.39inch- Made of high-quality plastic material, durable and safe for a long time use.- Suitable for general scientific laboratory, and educational use.- High-quality material that can ensure its durability and practicability.- It is perfect for school mechanics teaching use.- Portable and light in weight, easy to carry to where you need.Packing list6 x double pulleys