Fulton 4 X 20 Ft Anti-static Black W/gray Helix Flex-hose Made in USA Extremely flexible with great abrasion resistance Smooth interior assures minimal friction loss efficient air flow & elimination of material build-up impregnated with ''carbon black,'' reduces static build-up in material handling applications Hose is apx. 4" x 20 ft long when fully stretched to length. Wall apx..040 thick