The price is for 1? piercing , you will receive a single?piercing? not a pair?

6mm size?

• pin thickness: 0.8mm (about 20g)
• innerdiameter:?6mm
• outerdiameter:8.3mm? ? ? ? ? ? ?
• ring thickness:1.4

7mm size?

• pin thickness: 0.8mm (about 20g)
• innerdiameter:7mm
• outerdiameter:?9.8mm? ? ? ? ? ?
• ring thickness:2mm

9.5mm size?

• pin thickness:?0.8mm (about 20g)
• innerdiameter:9.5mm
• outerdiameter:12.4mm? ? ? ? ? ? ?
• ring thickness:1.8mm

Material : 14K Gold, 14K Rosegold, Whiteplated 14K Gold?