【Material】 316L Medical Surgical Stainless Steel 316L High-Quality Titanium Coating Free shipping! 4 pieces for 650 yen! Size: 16G (approx. 1.2mm) Ball: 4mm Inner Diameter: 8mm Simple and easy-to-match straight barbell body piercing ☆ It works well in the widest range of areas and is also perfect as a first piercing♪ You can change the catch or add charms for various arrangements!! The material uses corrosion and scratch-resistant stainless steel, which is also used in medical supplies, so you can use it with peace of mind♪ Colors: 1. Silver, 2. Gold, 3. Rainbow, 4. Black, 5. Blue, Pink Gold If you have a preference, please let us know your desired color in the comments or transaction messages. If not, we will ship 4 silver pieces. ※ We also have a set of 2 for 350 yen, so please consider it. Body Piercing / Straight Barbell First Piercing / Body Piercing / Cartilage Piercing / Tongue Piercing / Labret Stud / Nose Piercing / Lip Piercing Instant purchase OK.