Dark gray + black (2 dark roots) Zhangqing + Dark gray (2 dark roots) Dark gray + Light gray (2 dark roots) Black + Zhangqing (2 dark roots) Black + Black (2 dark roots) Dark gray + Dark gray (2 dark roots) Black + Dark gray (2 medium and thick) Black + Zhangqing (2 medium and thick) Dark gray + Zhangqing (2 medium and thick) Black + Black (2 medium and thick) Dark gray + Dark gray (2 medium and thick) Zhangqing + Zhangqing (2 medium and thick) Dark gray + black (2 bacteriostatic) Zhangqing + Dark gray (2 bacteriostatic) Black + Black (2 bacteriostatic) Dark ash + hemp ash (2 bacteriostatic) Black + Zhangqing (2 bacteriostatic) Dark gray (dark root) Black (dark root) Light ash (dark root) Zhangqing (dark root) Dark ash (bacteriostatic) Black (bacteriostatic) Hemp ash (bacteriostatic) Zhangqing (bacteriostatic)