The Pottery Barn 12 Days of Christmas Mercury Ornament Set is a beautifully designed holiday decoration featuring a set of 12 glass ornaments made of mercury glass. Each ornament is beautifully crafted with a multicolor design and includes a hanging feature, perfect for adding a festive touch to your Christmas tree. With its original box included, this ornament set from the early 2000s is a charming and timeless addition to your holiday decor.