[High quality material] is made of safe and durable resin. It will not produce harmful substances, damage the environment of the aquarium, and will not fade easily. Suitable for fresh water and salt water. Will not affect water quality [Safe use] The aquarium diver has no sharp edges. Your fish will swim with it without fear of scratching. It will become your fish's best playmate. [Adjustable position] The diver's position can be adjusted by changing the length of the connecting line. The float can be opened. If you think the diver swims too fast, you can add water accordingly. [Widely used] It is very suitable for all kinds of aquarium landscapes, whether with natural style or interesting animated characters. As an aquarium decoration, it can make the aquarium beautiful, and the correct water flow is also conducive to the health of fish.