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8 Ohm 0.5W SPEAKER
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Parts

8 Ohm 0.5W Mini Speaker Small Round Audio Speaker for Arduino DIY Projects Electronic Components Sound Module

RM1.95

8 Ohm 0.5W SPEAKER

410 RUBBLE WHEEL
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Parts

410 Robotic Rubber Wheel DIY Robot Smart Car Wheel 4.1cm Diameter

RM0.79

410 RUBBLE WHEEL

16MM METAL CASTER WHEEL
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Parts

Ball Caster Wheel Ball Transfer Eye Ball Roller Caster Bull Eye Wheel For Arduino Smart Car

RM3.95

16MM METAL CASTER WHEEL