Alnico U-Shape Magnet, 75 x 13 x 10mm Material_LDPE Hand-cranked to convert mechanical work

Hand-cranked to convert mechanical work into electrostatic energy

LED-output photoelectric cell on a 3

21-piece electrostatics set in a plastic case covering induction

and nucleus out of the cell body for hands-on organelle identification in cell biology teaching

Adjustable locking hook positions items 110 mm from the support rod on this suspension clamp

Alnico U-Shape Magnet, 75 x 13 x 10mm Material_LDPE Hand-cranked to convert mechanical workLarger 75 x 13 x 10mm Alnico U shape with the standard 18mm pole gap, the longer body extending the working face wide enough that iron filing patterns are visible from the back of the room.