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On one end there is an adjustable cylindrical convex lens (for parallel beam) and a triple aperture system for colour mixing experiments at the other end
fire buttons
Jumbo pipettes for little hands that are ideal for developing fine motor skills while learning primary science
Product Size - 131x95x58mm
Miniature Vibration Motor N818518 On one end there isMiniature vibration motor measuring only 12mm long x 6mm diameter. Core less motor design, rated at 3V nominal, current 75mA, weight 1. 85g. Originally designed for silent alert functions in mobile phones, but can be used effectively to motorise models by a vibration shuffle action. Pre wired with red and black leads 90mm. Rated speed 14000rpm (+ 2000rpm).