Mnpctech's billet cable comb have slots that will help your custom PC cables look professional. Acrylic and plastic cable combs are more likely to break or snap! Mnpctech billet combs won't break because they're cnc machined slotted from 1/8" thick 6061 aluminum. Our machined cable combs to provide the best gripe for your custom individually sleeved cables. Each individual slot is machined for 3mm diameter sleeved cable, so they hold tight.