I purchased this because my piercing needs an odd length curved barbell that is hard to find. The material is easy to cut to size and surprisingly comfortable to wear. Easy to externally thread and only a little annoying to thread internally. I like that I can just make a piece to fit ends I already have and not have to scour the internet for hours hoping to find a 11/32" curved barbell or custom order a 9mm. Also great for doctor's visits, just put on some acrylic ends and you are good to go for any imaging you might need. Great versatile product and definitely glad I purchased it.