Fidget Spinner Tabletop Desk Stand and Holder Lab Supplies_Weights & Masses Used to measure higher-current circuits

Used to measure higher-current circuits up to 10 amps

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

Twelve-spring steel extension set paired across six size combinations with looped ends

supplied with a rubber seal for bell-jar vacuum demonstrations

this Jolly's photometer turns the inverse-square law into a measurable observation

Fidget Spinner Tabletop Desk Stand and Holder Lab Supplies_Weights & Masses Used to measure higher-current circuitsTabletop desk stand displays fidget spinners upright for organized desk presentation during fidget toy collection and rotation.