Decorated by hand. - Pyrex glass - Approx. H 9 cm x W 8 cm x D 3.5 cm / H 3.5" x W 3.2" x D 1.4" - Due to the technique to color this heart from the inside, the hole on its back is wider than the hole on our other blown glass products - Due to the nature of hand-blown glass, size & shape may vary slightly from one piece to another