3PI miniQ cars caster smart car robot accessories diy 3PI caster for anduino toys
Features:
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.
Specs:
The width of the universal wheel is 22mm
Height 15mm, the installation screw holes spacing is16.5mm.
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