It's just take you 1 minute. Material: Stainless Steel;. The screw hole size is 16G(1.2mm ), ball size approx. 4mm/5mm/6mm;. Fit for most body piercing jewelry including Eybrow,Tongue Rings,NippleRings Lip Labret Studs,Hoesshoe Ring,Belly Button Rings;.
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