Measurements: Threadless piercing taper piercing changing tool for 20g 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). Internal threaded jewelry changing tool for 16g jewelry, thread part diameter 0.9mm;
Measurements: threadless earring threadless nose ring 20g, push in earring studs pole length : 1/4"(6mm) and 5/16"(8mm), top size 3mm; internal threaded labret jewelry helix earring studs thickness 16g (1.2mm), pole length : 1/4"(6mm) and 5/16"(8mm), top size 3mm;
Tips: Please bend the thin needle on the threadless jewelry threader tool, then push it into the threadless stud, otherwise, it cannot be hold tightly!