Product Particulars: Double Sided Gap Rubber Grommet Open Gasket Wiring Cable Twine Black Materials: Rubber Sort: Double sided Shade: Black Working temperature: 90C to 120C Dimension: Interior / Outer M3x8mm/M4x9.5mm/M5x11mm/M6x11mm/M8x15mm/M10x16mm/M12/M16/M20