Erbium (Er) 24.26mm Metal Disc with Acrylic Case for Collection or Experiments - Product Features
- One Disc, measures 24.26 mm x 1.75 mm
- Disk precision machined from high purity metal, ground surfaces, and laser etched labels
- Disc is the size of US Quarter, 99.9% Pure
- Disk approximate weight 7.61g
- One Acrylic Case with magnetic latches