Used for home cinema. The elevator consists of two parts. One part goes into the hole you created and the other part fits in. You run the cables and then you put them on top. We've run a three pin power plug and two HDMI cables through them and they fit and work well. You can run another cable of the same gauge. They are easy to install. I have a 2 inch hole saw and they put it to good use immediately. They will loosen up a little on their own so some glue may be required if you want to thread cables through the grommet. If not, I wouldn't worry. They might pop out when you move things, but you can just pop them back in.
π§ Efficient Handheld Grommet Punching Machine by BIZOEPRO
10 Review
π§ Grommet Guru: Unleashing the Power of MEZOOM's Diameter Setting Projects
9 Review
Smartphone Apple iPhone X 256 GB, 1 SIM, space gray
66 Review
CargoLoc 82473: Secure π Your Cargo With 10 High-Quality Grommets
11 Review