flex is part of:

flex contains:

Full expansion for flex:
   100%  11L Hollow Flex-System Tube
   100%  12L Hollow Flex-System Tube
   100%  13L Hollow Flex-System Tube
   100%  14L Flexible Ribbed Tube
   100%  14L Hollow Flex-System Tube
   100%  15L Hollow Flex-System Tube
   100%  19L Hollow Flex-System Tube
   100%  21L Hollow Flex-System Tube
   100%  24L Hollow Flex-System Tube
   100%  45L Hollow Flex-System Tube
   100%  9L Flexible Ribbed Tube