6-Piece Steel Spring Set with Looped Ends Lab Supplies_Spring Scales 75A single-phase rheostat with cover-protected

75A single-phase rheostat with cover-protected constantan winding on a 200x56mm tube and 4mm safety socket terminals

sized to drop a household-style bulb into a student-built circuit for power-and-Ohm investigations

Nine-piece stainless steel hooked weight set spanning 10 to 1000 grams in a polished wooden storage block

Blue 300mm 2mm-stackable lead with nickel-plated split-hollow pins

this air-cooled rheostat carries a slide-bar carriage on a vitreous-enameled tube for variable resistance under thermal load

6-Piece Steel Spring Set with Looped Ends Lab Supplies_Spring Scales 75A single-phase rheostat with cover-protectedSix spring steel set with looped ends across six sizes, producing a spread of spring constants for Hooke's Law and mass spring comparison work in introductory mechanics.