3 x 1" Rectangular Plane Glass Mirror, 10-Pack Subcategory_Electricity and Circuits a step up from the

a step up from the 70mm model with extended pole separation that gives field-mapping experiments more room along the magnet axis

and density concepts without needing an electrical power source

Designed to recharge the cells used in laboratory apparatus

carrying a removable 3-6V 5W heating spring for electrical-method specific-heat investigations

Five ceramic ring magnets at 1

3 x 1" Rectangular Plane Glass Mirror, 10-Pack Subcategory_Electricity and Circuits a step up from thePack of ten 3 by 1 inch rectangular plane glass mirrors at ~2mm thick, supporting reflection, image formation, and light path tracing experiments across a full optics lab class set.