The wrap I use looks a lot like flattened, telephone receiver wire.
It holds up to 4 cables inside the wrap, protecting them while at the same time making that maze of cables beneath the keyboard appear neat and tidy.
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)