3 7/8" (inside diameter)vase cap with 1" top and 3/8" hole to accomodate1/8 IPS pipe.This isunfinished and would need to be painted or polished. (We have 1 1/2" through 9" sizes listed on eCRATER in 1/2" increments, but if you need 1/4" sizes please contact us.) We combine with other items to save shipping costs. $3.78 each. Shipping is $3.10and $.48for each additional piece. "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. Combined shipping- to get the cheapest shipping cost (when buying different items) please buy what you need and "request invoice" so we can send invoice with lower shipping costs.
