Our bulk postcards are a standard 5.5" x 8.5" size, printed double-sided in full color on premium glossy cover stock — our professional choice for large mailings and handouts. Enter any quantity from 1,000 to 5,000 — volume pricing applies automatically, with the best per-piece rates at 2,500 and 5,000. Your print-ready file should be 5.5" x 8.5" with .125" bleed on all sides.