Material: stainless steel Plain stud earring Stem Gauge/dia:18g/1.0mm,stem length:6.5mm(+)1mm,ball size:9mm with black silicone ring round Quantity: 24pcs/12Pairs into opp bags Note: 1.The Cone will run off from the stem because of long transportation and rough handle by postman,it's not broken,just screw into stem by yourself. 2.converse : 1 inch = 2.54cm or 1cm = 0.393 inch 3: Due to different producing batches, there may be deviation of 1--3 MM for items. 4: Colors on your computer monitor may differ slightly from actual product colors depending on your monitor settings.