size 135x180mm weight 18g
size 145x190mm weight 12g
Total weight 30g. The wool envelope consists of two layers that are easily separable. The inner layer is made from waste wool - wool, that would otherwise be thrown away. Wool creates a shock proof and temperature insulated environment while also stabilizing the humidity levels. The outer layer is made from ProVantage Kraftliner recycled paper. The envelope is sealed with a glue strip (P&S).