Pulley set and bracket enables hands-on learning of principles in mechanics. Designed with a sturdy construction to withstand frequent use. Teachers can rely on its durability and reliability for continuous use in their physics lessons. Features -Color:Assorted Color -Material:ABS, iron -Size:34.00X17.00X8.00cm/13.36X6.68X3.14in -Size:9.50X4.00X1.30cm/3.73X1.57X0.51in -Size:15.20X4.00X1.50cm/5.97X1.57X0.59in -Size:4.90X1.70X1.20cm/1.93X0.67X0.47in -Pulley and holder kit is a scientific experimental equipment for teaching physics mechanics. -Pulley block physics experiment kit is designed to provide precise mechanical experimental data -Made of abs, iron materials for durability and reliability, ensure durability and use -Pulley stand and pulley block set is simple to use and suitable for both students and teachers. -Physics experiment pulley kit is widely used in physics laboratories and scientific research. Package list: 1 x pulley stand 2 x pulleys 2 x pulley lines 1 x hook pulley 1 x double pulley