Jewelry makers and woodturners, this titanium ring core is absolutely premium quality! Made from 6Al-4V titanium - the same stuff used in aerospace and medical applications because it's incredibly strong yet lightweight. The rounded interior profile is pure genius - no more pinching or discomfort when wearing the finished ring. At size 9 with 6mm width, it's a great standard size that works for many people. The titanium is biocompatible, so no worries about skin reactions or allergies, and it's completely corrosion-resistant. You will need to purchase the turning blank, bit, pen mandrel, and bushings separately to complete your ring-making setup. The quality is exactly what you'd expect from WoodRiver - professional grade materials and precise manufacturing. Once turned and finished, these rings have that beautiful titanium sheen that looks both modern and timeless. The comfort factor is real - people are always amazed at how comfortable these rings feel compared to traditional flat-bottom rings. If you're into ring making or want to create custom jewelry pieces, this titanium core gives you a fantastic starting point for creating something truly special. The material machines beautifully and takes a fantastic finish. It's one of those premium materials that elevates your craft projects to professional level results.