Review on Cal Hawk AZGA125 Grommet Assortment Electrical: Complete your Electrical Projects with Versatile Grommets! by Jason Gopinath

These are typical rubber bushings. Unlike other browsers, I haven't found any difference between these and others I've used since the late 1960's. They are flexible and well made, without large seams. Large connector grommets can be cut into the connector area to allow wires to pass through. This allows you to cover a large hole but still run the wires through a much smaller hole in the rubber. It is ideal for car repairs and DIY projects.