KidWind Wind Turbine Hub, ten-pack of 12-hole crimping hubs, made from recycled plastic, allows you to turn any DC generator into a wind turbine, Diameter: 2.25 in, Maximum number of dowels: 12, Size of shaft hub press fits onto: 2 mm
Harmonic Motion Spring, ideal for demonstrations or hands on experiments in the physics classroom, 7 inches (18 cm) long with a maximum diameter of 1.4 inches (3.5 cm) and a spring constant (k) of 9.6 N/m
GHS Basics training Poster, measures 22h x 17In w, Made of vinyl and laminated for durability, Poster has all the key elements to GHS training which all employees are required to take, Features the 16-sections of the Safety Data Sheets, the updated label format, and the new label pictograms.