58mm Plastic Omni Wheel for Lego L293D Motor Driver IC Are these propellers authentic

Are these propellers authentic

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58mm Plastic Omni Wheel for Lego L293D Motor Driver IC Are these propellers authentic58mm Plastic Omni Wheel for Lego 58mm Plastic Omni Wheel for Lego The 58mm Plastic Omni Wheel for Lego is the smallest Omni wheel with the loading capacity of 3kg. These wheels are compatible with Lego Motors and so with the Lego Robots. They equip double nylon disc for each wheel plate. These 58mm small Omni wheels are the special choice of Lego Robot designers. They feature rubber rollers along the circumference of the wheel which avoids slipping