Flyshop 4-Pack Round Double-Sided Black 70 mm 2-3/4" Rubber Grommet, 60 mm 2-3/8" ID, Hole Grommet Synthetic Rubber Grommets Wire Protection

"Size": 2-3/8" / 60 mm Inside Diameter, 2-3/4" / 70 mm Drill Hole, 3-5/32" / 80 mm Outside Diameter, 1/8" / 3 mm Groove Width, 13/32" / 10.5 mm Total Thickness "Material": Flexible Synthetic Rubber, Non-toxic and Tasteless, Strong Insulation Protection Function, Dust-proof and Flame-retardant "Features": Keep wires or any other materials from rubbing against metal, Run wires through frame, firewall, sheet metal and other applications.