LEGO parts: Technic pneumatic hose kit 24 cm, 21.6cm, 4.8cm, 2.4cm (10 pieces) LEGO Pneumatic hose kit- 10 pieces. 3 -24 cm hoses (2 black 1 medium stone gray) 4- 21.6 cm hose (2 black, 2 medium stone gray) 2- 4.8 cm hoses (blue) 1- 2.4 cm hose (blue)