Feature: 1. Aquarium plastic variable diameter connector, solve the problem of the diameter of the water pipe is not suitable, and the transformation of the water pipe. 2. Plastic material, more affordable than metal. 3. Safe, non-toxic, tasteless and practical. 4. Good quality, durable in use. 5. Suitable for aquarium hose connecting, and can connect the different diameter hose. Specification: Condition: 100% Brand New Item Type: Aquarium Connector Material: plastic Color: as picture shown Option: 5 pcs 8mm/12mm, 5 pcs 8mm/16mm, 3 pcs 12mm/16mm, 3 pcs 12mm/20mm, 2 pcs 16mm/20mm Package List: 5 x 8mm/12mm Connector 5 x 8mm/16mm Connector 3 x 12mm/16mm Connector 3 x 12mm/20mm Connector 2 x 16mm/20mm Connector