Marina Decor Caves are natural-looking polyresin replicas of underwater caverns. The cavernous structures provide secure areas for hiding and swimming. They are also an excellent way of creating beautiful, natural-looking rocky landscapes. The Decor caves are grey with white and green highlights and include one life-like amazon sword plastic plant for added realism. Made of non-toxic materials, the caves will not affect water chemistry or clarity. Size: 10.5 x 15.5 x 12.5 cm (4.2 x 6 x 5 in)