Using the 23 worksheets in this kit, pupils will learn about gravity, friction and inertia. There are assorted pulleys, weights and forcemeters amongst other components all packed in a sturdy Gratnell tray for easy storage. The worksheets may be photocopied for repeated use.Contents:Gratnell Tray & lidPulleysWeightsForcemetersPaper clipsSticksBalloonsStrawsStringRetort Stand, Rod, Bosshead & clampWorksheetsDimensions: 150mm high, 430mm deep, 310mm Wide.Approx. weight: 5Kg