... with two hooks. Aluminium Pulley in Aluminium moulded frame Pulley Double in LineTwo Pulleys 40 and 50 mm(Apporx.) dia, mounted ... , is a package solution provider & manufacturer of educational and laboratory equipment for subjects such as Physics, Chemistry, Biology, Geography, Mathematics, ... interactive electronic whiteboard, language lab, sensor-based products, etc. Pulley, Double in Line (aluminum)