Fiber specimen collection contains: 1 Cotton (2 pieces of material and a piece of cloth). 2. Flex (2 pieces of material and a piece of cloth). 3. Wool (2 pieces of material and a piece of cloth). 4. Silk (2 pieces of material and a piece of cloth). 5. Asbestos (2 pieces of material and a piece of cloth). 6. Viscose (2 pieces of material and a piece of cloth). 7. Glass fiber (2 pieces of material and a piece of cloth). 8. Nitron (2 pieces of material and a piece of cloth). 9. Kapron (2 pieces of material and a piece of cloth). 10. Lavsan (2 pieces of material and a piece of cloth).