For Stretching Or For Jewellery Insertion.
Use this with water based lubricant.
A taper of 16g (1.2mm) is used to stretch a piercing to 16g, to then be able to insert a piece of 16g.
The same counts also for 14g - 1.6mm. With a taper of 14g - 1.6mm, you stretch a smaller piercing to 14g, which you can then adorn with a piece of 14g thickness.