4mm Double Gem Ball Tongue / Nipple Barbell
Basic double jewelled tongue stud. Available in lots of colours!
4mm is much smaller than an average tongue bar ball - these are fab if you only have a small mouth!
The barbell is made of surgical steel and is available in 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 19mm and 22mm bars, with 4mm balls. 1.6mm gauge.
These can also be used for many other piercings such as nipple, many ear piercings etc.