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: 15.5 x 22.5 x 16.5 cm (6 x 8.8 x 6.5 in)