This is the Wltoys 144001 Ball bearing with a size of 4X7X1.8mm. Total pcs. The Model list number is 144001.1296.
Wltoys 144001 Ball bearing 4X7X1.8mm-4pcs-144001.1296, Wltoys 144001 1/14 Parts, Wltoys 144001 RC Car Parts, lC Racing wltoys 144001 RC buggy parts, wltoys 144001 1/14 2.4g 4wd high-speed racing RC car vehicle models 60km/h car parts.
These Parts are used for the Wltoys 144001 RC Car Buggy, Wltoys 1/14 High-Speed Racing Car
If you want to buy more parts for this RC car,
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Wltoys 144001 Parts