These are complete dark brown phenolicoff/on pull chain sockets (we have off-on that are quite a bit cheaper- see our store)- perfect for wiring table or floor lamps. They come complete with socket, shell, and cap. The outside pieces screw together and bottom cap has 3/8" threaded hole that works with standard 1/8 IPS pipe. We combine with other items to save shipping costs. $3.92 each. Shipping is $3.40 for 1 plus $.44 for each additional piece. Combined shipping- to get cheapest shipping costs (when buying different items)please buy what you need and “request invoice” so we can send invoice with lower shipping costs."How to Request Invoice when using shopping cart"---From your eCRATER cart, near the top of the page, move your mouse curser over our name “lamppartsguy” and a drop down menu will appear with the option to request invoice from seller.