Description Screwback Spike description height: Two and 3/4 inches base: 3/4 inch color: highly polished black base metal: aluminum finish (plating): powder black shape: giant round tree-like spike screw type: inch- Size 1/4 – 20 NC Tap, 1/2″ length unit type: single spike and screw per quantity   FOR INTERNATIONAL CUSTOMERS: If you are interested in combined shipping for an order with multiple spikes please contact us at [email protected] for a shipping rate.