I own both the solid metal and this plastic version of these 3.5mm stereo pass through jacks. The solid metal one is MUCH more sturdy and doesn't "flake out" like this plastic one. The screw threads strip easy. But, the #1 thing I don't like about this plastic one is how "flimsy" it is and it does NOT make a good connection when you plug in your wires. Had to sandwich a piece of rubber stopper material for the 3.5mm plug to make contact. So, go with the solid metal one available here on Amazon.
UPDATE: Ran into some serious magnetic noise and interference (RF) using the metal ones. I went back to this plastic one and Presto! now the noise/hiss/distortion/weird DC switching noise is GONE when using this plastic pass through jack plug. It is still flimsy, but pretty dern happy that my system works and sounds clean now. Upped to 4-stars now.
These feed-thru connectors are made of the finest components which assure the user to get the optimum performance from their equipment. These connectors are extremely popular for Media Rooms, & Equipment Closets.