Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2951466.
this is a simple print in place holder to keep your cables together. u can make several and place where needed. to operate you turn the outer ring till the slot lines up with the slot in the inner ring. then you place your cable in thru the slot. when done you turn the outer ring till the slots dont line up. then the cables cant come out.
use supports. printed flat on table.
kinds hard to separate the rings but with two large pliers you should be able to break them loose from the supports inside. use a single edge razor to cut the little bit of supports between the rings. on both sides of the large ring. just push razor down between and rock a little to loosen them. then turn the ring back and forth to completely free the rings.
i included a stp file so that you can make modifications easier.