Liquid Timer

Liquid Timer Relaxing and incredibly visual, this approximately one minute timer is a great gift for those who are visually oriented! Each bubble liquid timer is 2 x
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LEGO Mindstorms NXT 2.0 (8547)

LEGO Mindstorms NXT 2.0 (8547) The intelligent NXT Lego brick features 32-bit microprocessor, a large matrix display Three interactive servo motors; four sensors(Ultrasonic Sensor, 2 Touch Sensors and
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