3 3/4" (inside diameter)solid brass vase cap with 1" top and 3/8"hole to accomodate standard 1/8 IPS pipe. These aresatin brassfinishandlaquered. (We have 1 1/2" through 4" sizes listed on eCRATER in 1/2" increments, but if you need 1/8" or larger sizes- up to 9"-please contact us.) These are hand done by order- shipping is 1-2 business days. We combine with other items to save shipping costs. $5.41 each.Shipping is $3.22 for 1 and $.20 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.