6-Piece Steel Spring Set with Looped Ends Lab Supplies_Spring Scales Extending up to 65 feet

Extending up to 65 feet from a 20cm closed height on the included wooden stand

Six-lens optics set of three double-convex and three double-concave glass lenses with ground beveled edges

with banana-plug terminals for optical-bench and physics-demonstration circuit setups

Standard rheostat at 2

25mm enameled copper wire on a 355 x 50mm air-cored former with 4mm safety sockets and a 6A maximum

6-Piece Steel Spring Set with Looped Ends Lab Supplies_Spring Scales Extending up to 65 feetSix 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.