Penn Plax Enchanted Castles Aquarium Decoration BEAUTIFUL HANDPAINTED ORNAMENT: this decoration is made of safe and durable resin. SAFE FOR AQUARIUMS OF ALL TYPES: safe for fresh and marine water, this dcor will add a beautiful touch to your aquarium DIENSIONS: the Pen n Plax RRW13 is 8.5 inches tall (smaller and bigger sizes available, sold separately). SHOP PENN PLAX FOR ALL YOUR AQUARIUM NEEDS: for a custom look, combine with other Penn Plax aquarium decorations and ornaments (sold separately).