The thread is in the side of the ball next to the stone.
Material specification: 316L surgical stainless steel
Thread compatibility/ball diameter: 1.2mm x 3mm
316L steel, also known as surgical steel, is the most common material in our jewellery range. It contains about 10-14% nickel but only release less than 0.1 billion gram per cm2 and week. Along with Titanium, this is the most common material in jewellery that we use when we perform a piercing.