Ferrite Ring Magnet, 4In Dia, Ceramic for Science Experiment
Ring Magnet, Dimension: Outer Diameter: 100mm Inner Diameter: 60mm Thickness: 20mm, Grade 8 Ceramic, Dark Grey Ring Magnet, Thickness (In.) 0.79, Dia. (In.) 3.95, Hole Dia. (In.) 2.36, Stability Temp. (Deg. F) 400, Grade 8 Ceramic, Dark Grey