Color: redSize: 9 x 13.5 cmSuction diameter: about 3.5 cm Thread length: about 45 cmOctopus is controlled by a single thread. Suction cup can be put at the bottom of tank or tank wall. Suction cup and thread are connected. So be carefull when you want to take out octopus, do not break the thread. Adjust thread's length to the position that you want. Octopus can wander in your tank, adding more dynamic feeling.Note: 1. Environment friendly material made product, no pollution or injury to aquatic life.2. This product is not noctilucence. It will not emit light in dark environment. If you want to get fluorescent effect, aquarium lamp is needed. 1 x Artificial Octopus2 x Cover1 x Suction cupIn original package