Phoenix Contact 0801718 A small round cable with a closed design features a single conductor and has an external diameter ranging from 1x 2 mm to 11 mm. The material is NBR, indicating it's made of nitrile rubber, which provides flexibility and resistance to chemicals. The cable measures 29.5 mm in length, 19.5 mm in width, and 17 mm in height, with a black color and no sleeve.