Rubber bellows. Great for protecting control cables from ingress of dirt and grime.
Can also be used for protecting wires in flexible installations. e.g. between 'A' post and doors or body and boot lid.
106mm long relaxed. Will compress to 40mm. 20mm maximum diameter. 6mm holes in one end and 7.5mm hole in the other.
CABLE COVER BELLOWS #CABCOV