Feeney CableRail Kits are the easiest, most popular, and best-priced cable infill options. Use for Wood Posts or Metal Posts. Each CableRail Kit includes all parts to complete and tension one run of cable. CableRail Kits are designed to terminate through the post. For outside of post to outside of post connection, where a hole is drilled through the connecting posts, cable and fittings are inserted and tensioned.