6 unmounted stamps (size appr. 1x2,5 , 1x3, 1,5x3,5 , 2x5,5 , 2,5x6,5 and 3,5x9cm), with EZ Mount foam, you need an acrylic block to use it, fits Spellbinders / Heartfelt Diecuts Perfect Petal (HCD704)