... .No poison,odorlessness and harmless to human body.6.Style:O ring.7 Quick supply .8.Various colour is available.9.Small ... . was firstly founded in 2011.It mainly deals export business for mobile phones cases, silicone wristbands,silicone snap bracelet,silicone watches ... East and southeast Asia with more than one thousand items. O ring(make kinds of O ring for life or machin;standard or non-standard)