Betta Tunnel Toy: This Betta Fish Acrylic Tube Tunnel is a great accessory for your aquarium or fish tank. It adds an interesting shape to your fish tank and provides a play area for your fish Aquarium Cave: The Betta Fish Leaves provides shelter, hiding place and spawning, privacy for your fish tank pets for small fish, cichlid, and betta, allowing you to observe their activities Material: The Betta Fish Accessory is made of acrylic material that can withstand the aquatic environment Product Size: 5.91' in length, this Betta Fish Cave fits comfortably in most standard sized aquariums without taking up too much space Multipurpose:Aquarium Cave is great crayfish, cichlid, betta fish, cichlids, hermit crabs or other small fish Specification: Material: acrylic Size Chart: length:15cm/5.91inch Outer diameter:5cm/1.97inch thickness:2mm/0.08inch Package Includes: 1Betta Fish Tube Tunnel 2 Suction cup 1 Betta leaf Note: Please allow slightly errors 1-2cm differences due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.