The gap is 4mm approx.
Material specification: 316L Surgical stainless steel
Ring thickness/internal diameter: 1.0x7-9, 1.2x7-9, 1.6x9
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.