Captive Bead Rings (CBRs or BCRs) are measured at the largest inside diameter. You can wear captive rings in almost any piercing.

Circular Barbells are measured just like a CBR, at the largest inside diameter. You can also wear Circular Barbells in almost any piercing.

Plugs, Tunnels, Earlets, Eyelets, etc..are measured by the outside diameter. This relates to the thickness of your piercing. The length of the tunnel is measured from rim to rim, which we call the wearable area.

Straight Barbells are very easy to measure. They are mesured along the shaft between both balls.

Labrets are measured along the shaft between the flat disc and ball.

Curved (Bent) Barbells are measured by the inner length between both balls.

Nose Screws are measured on the inside of the screw from the bottom of the charm down to the bend.
Nose Bones are measured from the bottom of the charm to the top of the ball.
Nose Fishtails are measured from the bottom of the charm all the way to the end.

All of our stock externally threaded jewelry are made with 14g threading. Which means that anything 14g will fit on 12g, 10g, or 8g shafts.

LENGTH & DIAMETER CONVERSIONS

INCHES

MILLIMETERS

1/4"

6.35 ~ 6mm

5/16"

7.9375 ~ 8mm

3/8"

9.525 ~ 10mm

7/16"

11.125 ~ 11mm

1/2"

12.7 ~ 12mm

9/16"

14.2875 ~ 14mm

5/8"

15.875 ~ 16mm

11/16"

17.4625 ~ 17mm

3/4"

19.05 ~ 19mm

13/16"

20.6375 ~ 21mm

7/8"

22.225 ~ 22mm

15/16"

23.1825 ~ 23mm

1"

25.4 ~ 25mm

1 1/8"

28.575 ~ 29mm

1 1/4"

31.75 ~ 32mm

1 3/8"

34.925 ~ 35mm

1 1/2"

38.1 ~ 38mm

1 5/8"

41.275 ~ 41mm

1 3/4"

44.45 ~ 44mm

1 7/8"

47.625 ~ 48mm

2"

50.8 ~ 50mm

BALL SIZE CONVERSIONS

INCHES

MILLIMETERS

1/8"

3mm

5/32"

4mm

3/16"

5mm

1/4"

6mm

5/16"

8mm

3/8"

10mm

GUAGE CONVERSIONS

GUAGE

INCHES

MILLIMETERS

18g

.040"

1.0mm

16g

.050"

1.2mm

14g

.064"

1.6mm

12g

.082"

2.0mm

10g

.102"

2.5mm

8g

.125"

3.0mm

6g

.162"

4.0mm

4g

.204"

5.0mm

2g

.250"

6.0mm

0g

.312"

8.0mm

00g

.375"

10.0mm