Made of flexible and durable rubber, and are of good electric resistance capability, seal rings will fit those drill holes precisely and efficiently
Usages:
Rubber grommets are designed for easy installation and click snap affixing drill holes, metal panels. Usually applied in holes in metal panels or other materials to protect cables, wires, cords from possible mechanical or chemical attacks, thus to protect the wires, cords, cables, etc. and give your furniture, electrical boxes a neat look.
Dimension reference:
The dimensions of the rubber o rings are based on the inside groove diameter (ID) of the indented seam of the outside rim. It means that the 1 inch grommet has a 1 inch indented groove width, and is about 1.3 inch in OD. and 0.68 inch in ID.
Package includes:
Quantity: 180
8 Sizes:
5 x 5/ 8 Inch
5 x 7/ 8 Inch
5 x 1 Inch  
20 x 1 /2 Inch  
25 x 7/ 16 Inch  
40 x 1/ 4 Inch  
40 x 3/ 8 Inch  
40 x 5/ 16 Inch  
With See-through Divided Organizer Case