These risers are made of billet aluminum with show chromed finish. The fat look of these Phat risers with their 1 1/4" diameter stands is especially designed to match with 1 1/4" thick handlebars that require 1" diameter risers. Can be used in combination with stock or any of our handlebar clamps for 1" handlebars. Sold in pairs. Use ZPN 233383 riser bolts.