Big Star Screw

The Screwbidoo belly bar is available in the following sizes:

6mm (1/4")

8mm (5/16")

10mm (3/8")

12mm (1/2")

14mm (9/16")

It is important that you select the correct length so it fits your piercing. Measurements are taken in a straight line on the inside of the top ball (smaller one) to the inside of bottom ball (larger one). This can be done on your current belly bar using a standard flat ruler or a digital vernier gauge if you have one.

The example below shows a measurment taken using a vernier gauge and shows that the belly bar is roughly a 10mm (3/8") size.