Rock Tunnel With Plant-b. Rock Like Tunnels Adorned With Floral Greenery Provide Safety And Cover For Your Living Inhabitants. The Bent And Twisted Shaped Walls Will Compliment Any Natural Looking Aquarium.Blue Ribbon Exotic Environments Rock Tunnels with Silk Style Plants 10 x 5 x 5 inches. Rock-like tunnels adorned with floral greenery provide safety and cover for your living inhabitants. The bent and twisted-shaped walls will complement any natural-looking aquarium.