PLEASE NOTE - For the 8g, 6g and 4g sizes the segment is very easy to remove/replace by hand. The 2g was more difficult but still not too hard for me. I found the 0g and 00g much more difficult to remove/reinsert the segment. You may need something to assist you (tool to help spread the ring a little, and maybe a friend) while doing removing/reinserting the segment for the larger sizes. Acrylic Segment Rings - select Gauge/Diameter from the drop-down menu Materials: acrylic EVERYTHING we sell is brand new, never worn.Feedback: Your satisfaction is important to us. If for any reason you feel like we don't deserve a 5-star rating in every category please allow us the opportunity to rectify the situation. While many situations such as postal delays are out of our hands, we will do whatever we can to alleviate any problems that may arise.