20mm Copper Density Cube with Hook Lab Equipment_Power Supplies Ten-pack of 5mm green through-hole

Ten-pack of 5mm green through-hole LEDs

Ten-pack of 16mm steel ball bearings sized as a larger projectile for ramp experiments

Used to seat E10 miniature-Edison-screw bulbs in circuit experiments

while the cast iron anti-tip base keeps the unit upright on classroom benches

Stackable 500mm red 4mm lead rated to 12A with nickel-plated split-hollow safety plugs at both ends

20mm Copper Density Cube with Hook Lab Equipment_Power Supplies Ten-pack of 5mm green through-holeHangs a 20mm solid copper cube via an integrated hook for buoyancy and density work, with the (Cu) element stamp and a total 1. 5 inch height including hook for spring scale suspension.