Wiha Quality Tools MagicRing Fold-Up Style Key Sets Screw Holding Hex Tools. Don"t Drop That Screw! Save Time! Improve Productivity! Use The Most Productive Innovation for Hex Tools in 30 Years in.MagicRing in. MagicRing uses a Hardened Steel Compression Ring Securely Grips Inner Head Of Screw Allows you a free hand for work positioning. Hardened CVM Tool Steel, Precision Machined Tips Corrosion Resistant Finish Guaranteed Quality Made In Germany Metric Set includes: Standard Ball*: 2.0, 2.5mm. MagicRing Ball: 3.0, 4.0, 5.0, 6.0, 8.0mm. *Standard ball - no ring. Made in Germany by:Wiha Quality Tools which offers a lifetime guarantee on most all of their tools.