We made a few holds based on our new transparent material. Material is modified in a way to obtain our safety material properties. Granite rock was used, sharp edges were polished out.

"Soft granite" is ready to be used:

Casted from local granite rock.

No sharp edges, finger friendly, "soft granite".

Transparent, smooth backside.

http://greengrip.valmiskauppa.fi/diamonds-are-for-climbing-vat-cargo-and-handling-included-p-806.html