The Circular Motion Kit Simple with Cords and Washers is a classic representation of PSSC principles, offering a moderately accurate depiction of circular motion laws. It is intended for outdoor use and should be handled carefully due to its spinning components. This kit provides students with a physical understanding of the involved forces. Kit Includes: 1 x Glass tube with plastic coating (used as a handle) 1 set 20x washers (used as weights) 1 x Rubber stopper with 2x holes (used as the whirling mass) 1 x Alligator clip (used as the marker on the nylon line) 1 x Paper slide clip (used to support the washers) 1 x Nylon line or filament, approx. 1.5m long 1 x Short wooden dowel (used to jam the nylon into hole in stopper) *also called ‘Centripetal Force Kit Read Instruction Sheet Brand: IEC Dimensions: 130mm (L) x 65mm (W) x 40mm (H) Weight: 0.14 kg Product Code Item SE.MF0850-001 Circular Motion Kit SE.PA0850-010 Glass Handle Only / Sleeved