Precision crafted screw-on stainless steel pin with a taper going from two millimeters thinner than the respective gauge to allow for easy insertion. Ideal for helping locate the piercing when putting in the barbell. WARNING: these screw only onto our barbells; they are unlikely to work with barbells made elsewhere. Gauges: 4mm (6g), 5mm (4g), 6mm (2g), and 6.3mm (1/4") Length: 35mm Material: 316L Stainless steel These are made to order. Care should be taken when purchasing our items due to the nature of the products and the intimacy. We offer many different sizes with a lot of our products, so please take care when choosing. Please note: there may be a handling charge or custom fees on the parcel depending on country of destination.