12mm Inner Dia Rubber Cable Protector Wiring Grommets Gasket 100 Pcs Country of Manufacture: CHINA; Material: Rubber Net Weight: 46g; Package Content: 1 x Wiring Grommets Gasket Main Color: Black; Inner Hole Diameter: 12mm/0.47inch Outsider Diameter: 18.5mm/0.73inch Groove Width: 1mm/0.04inch