1.20years manufactureing experience 2.excellent quality&competitive price ... -silverSize:Optional: Usual sizeDIA:1.5CM,2.5CM.3.5CM.4CM,4.5CM,1.8CM.2.2CM.5.5CM.6.5CM,7.5CM,10-15CM,and 2.5 ... *1.8cm,2.5*2.5cm, ... 2*2.8cm,3*1 ... .8cm,3.5*2.6cm,4.5*5.5cm,3 ...