Through almost 3 month hard work,we have success developed 4 inch double central locking caster wheels.The design is constantly stay same style as our other 5 inch and 6 inch twin central locking casters . General specs as below * Wheel frame use high quality Poly-amide * Wheel tread adopt German origin PU material --- Very durable * Wheel size:Ø100 x 65mm wide * Turning radius:29mm * Lock stem option: Ø32x50mm,Ø28 x 95mm * Dramatic Load capacity: 125kg/PC * Static load capacity:150kg/PC * Lock functional: Free,Total Lock,Direction Lock Anyone interesting in our 100mm twin central locking casters,contact us freely. sales@casterwheelsco.com
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