This 3/4" ID Wall Eye Wall Port - Fits Wall/Barrier Thickness Ranging from 7 3/8" - 9 3/8". This unit comes in two pieces and threads together inside of a predrilled hole, to provide a fully tubed opening that passes from one side of a barrier to the other. This allows the running of cords, cables, tubes, etc.. from side of a barrier to the other through a aesthetically pleasing port. We Recommend a 1 3/8" hole for the installation of this product.
Additional note, all of our product line is produced through additive manufacturing. This allows us to offer a wide range of products, while keeping our product pricing down.