[Size]: Threadless piercing taper piercing changing tool for 20g and 16g threadless jewelry. Piercing changing tool top pin size: 0.48mm * 4.8mm (suitable for most threadless stud jewelry); piercing taper insertion tool pole length: 1.18"(3cm).
[Size]: Internal threaded jewelry changing tool : for 16g, threading 1.0mm; for 18g, threading 0.8mm; piercing ball grabber tool can grab the ball from 1mm-8mm;
[Tip]: Please carefully confirm the thread size of the internal threaded piercing insertion tool. Please bend the thin needle on the threadless jewelry threader tool, then push it into the threadless stud, otherwise, it cannot be hold tightly!