These risers are styled after the BMX risers of our youth, but re-made for heavy duty action. The face measures 2" square, and they're 3.5" inches deep. The high polished aluminum posts are included, and are 3" tall, and tapped 1/2-13. Fits 1" bars only. They ain't cheap, but they'll beat the shit out of any other risers, cause that's "how they roll." Polished style shown, but raw aluminum also available.