Material: 925 sterling silver (stamped)/freshwater buttom pearl ..Quantity: 1 pair ...Pearl size:4mm ...Screw ball: 4 mm ...Bar length: 7.4 mm (0.29") ...Weight of a pair: About 0.8 g ...It comes with a box. ♥ Perfect for daily wear. Fashion and Stylish. SHIPPING AND HANDLE: ♥ All the items will be shipped in one business day. It will take about 2 to 5 days to delivery in USA, and 5-15 days out of USA. Some special international packages will take more than 20 days but less than 25 days due to strict Custom Inspection. ♥ All the packages come with tracking numbers.