3PI miniQ cars caster smart car robot accessories diy 3PI caster for anduino toys
This product consists of four small ball and a diameter of 12mm large steel ball, all the steel ball with 304 stainless steel ball, to ensure long-term use will not rust, the outer ring material is plastic, suitable for smart car chassis Support and desktop miniature robots above.
The width of the universal wheel is 22mm
Height 15mm, the installation screw holes spacing is16.5mm.
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