Shapton Glass Sharpening Stone Feild Holder.
The field holder is light yet provides an exceptionally stable base for sharpening with the glass stones. Designed to hold up to 3 glass stones for transportation or storage. When turned over, it can also be used as a stable base to use while sharpening.
Specifications
• Material: Glass and rubber
• Dimensions: 9.96" x 3.15" x 2.1" ht (253 x 80 x 53mm)
• Weight: 640g (1.4 lbs)
• Store up to 3 Shapton Glass Stones
See here for Shapton Glass Stones....
Do not Soak in water, these are no waterstones! Just a spalsh of water, see included instructions for details