Easily the coolest addition to your keys!  Thickness will vary from 0.08in to 0.11in from Keychunk to Keychunk, etching also changes the thickness a few thousandths.

Pure Superconductor

The industrial turned beautiful, these KeyChunks offer a unique style unmatched by other more common materials. Finding its origins in particle accelerators and MRI machines, this unique blend of niobium and titanium forms an almost organic looking structure when worked into a finished piece. Etching and polishing leaves a mesmerizing finish which demands attention.