BEK Thermistor: 5k Ohm NTC by Unilab, Breadboard (Small or Medium), Ceramic Ring Magnet, Double Convex Spherical Lenses: +20D - Pack of 5, Expendable Steel Springs - Pack of 100, LED Indicators, 5mm: Mixed Colours - Pack of 50, Rheostat with Connectors for the Worcester Circuit Board, Soldering Iron, Soldering wire and Young's Modulus Apparatusa