20mm Brass Density Cube with Hook Racks & Stands_Flask Stands Non-conductive and waterproof fifteen-meter fiberglass

Non-conductive and waterproof fifteen-meter fiberglass tape measure with PVC coating and a flush winding handle

Graduated white screen mounted for use on the optical bench

slide valve

Adjustable-vibrator induction coil producing a 30mm spark from a 6-12V DC input

sized to deliver 6V at the high-current capacity of D cells for sustained electromagnet and motor demonstrations

20mm Brass Density Cube with Hook Racks & Stands_Flask Stands Non-conductive and waterproof fifteen-meter fiberglassSuspends a 20mm solid brass cube from spring scales for Archimedes' principle and buoyancy measurement, with the (Br) element stamp marking the material for easy identification.