Natural materials - 8 specimens sunk into the material

MACHINE TRANSLATION (not authorised yet)

In a transparent plastic block, 8 natural specimens representing samples of natural materials are sunk:

1 - wood

2 - crude oil

3 - cotton

4 - carbon

5 - hemp fibre

6 - bamboo

7 - rubber

8 - mineral

Block packaged in a bubble pocket and placed in a lockable cardboard box. Teaching aid dimensions: 14 x 6.5 x 1.8 cm.