1.charing color around you 2. door to dooor service 3.hign quality crystal ... 2.0mm in diameterSS7 , 2.2 - 2.3mm in diameterSS8 , 2.3 - 2.4mm in diameterSS9 , 2.6 - 2.7mm in diameterSS10 , 2.8 - 2.9mm in diameterSS11 , 2 ... in diameterSS12 , 3.1 - 3.2mm in diameterSS13 , 3.2 - 3.3mm in diameterSS14 , 3.4 - 3.5mm ... in diameterSS17 , 4.0 - 4.2mm in diameterSS18 , 4.2 - 4.4mm in diameterSS19 , 4.4 - 4.6mm ...