This titanium threadless trinity ball top is one of our most popular items – people love it and it is perfect in ear curations. Available in multiple sizes. To use threadless jewelry, simply put a slight bend in the durable 25 gauge implant grade steel pin before inserting into the base for a snug, tension-based fit. Compatible with all sizes of bases. Manufactured out of High Polish Implant Grade Titanium (Ti-6AL-4V-ELI ASTM F136).