Large South Pacific Seas Snail Shells ( aka Queen Conch shells) , 4 total. Largest measures 9 x 7.5 x 5.5 in. ( L x W x Ht) . Undersides are a pinkish- white. Smallest measures 8 x 7 x 5.5 in. You can find these types of shells in Mexico and the Caribbean. Have weight. Perfect as a centerpiece, for beach home, or to bring the ocean to you. Extra Large Queen Conch Decorative Seashell, beachcomber home decor and accessories, Nautical Home accents, Genuine large snail shells, South Pacific Conch shells, Luxury beach home decor and accessories, Maritime home accents, Caribbean queen conch shells, Centerpiece table shells, Accent table shells, 3 cs the Conch was a valuable commodity for trade and was used as a currency by the native people of the Caribbean. The shells were also highly valued for their beauty and were often used in traditional ceremonies and as symbols of wealth and status.