- Solid Titanium Internally Threaded Plain Loose Replacement Ball- Implant Grade 23 Titanium (ASTM F-136 Ti 6Al-4V-Eli)- Nickel Free. Best for initial piercing- Ball Size: 3mm, 4mm, 5mm
- 16 gauge Threading: 0.9mm
- 14 gauge Threading: 1.2mm