12-Piece Steel Extension Spring Set, 6-9" Material_Glass with a 6cm cylinder extending

with a 6cm cylinder extending to 16cm overall for suspending submerged specimens in the bucket

Twelve-inch steel compression spring with a 0

blue and the secondaries green

Pointer electrode have an insulating handle for adjustment of the spark gap

this compact insulated wire keeps color-coded wiring intact when student work shifts to small-scale breadboarded circuits

12-Piece Steel Extension Spring Set, 6-9" Material_Glass with a 6cm cylinder extendingTwelve spring steel extension set paired across six size combinations with looped ends, offering a spread of spring constants for simultaneous comparison in oscillation and Hooke's Law experiments.