"The Richco® Open Snap-in Bushing (A Series) has a split design to allow side entry of wire or cable bundles. The split design also accommodates a retro-fit installation on preassembled harnesses. May be installed into holes that already contain wires. Black, Nylon 6/6, RMS-01."... Click here for more info on Open Bushing Hole Diameter 1.07 Qty 10.