1、NON TOXIC MATERIAL: Plastic hose barb fitting is non toxic, odorless, pure in texture. Possess good surface stiffness and scratch resistance, you can use with confidence 2、WEAR RESISTANT PP MATERIAL: Made of good quality PP material, wear resistant and durable. Will not rust, which is an ideal pipe material to replace ordinary iron water supply pipes 3、FOR PUMP AND SILICONE TUBE: Barbed fitting can be used for hose connection as aquarium accessories, useful and practical 4、WIDE USES: Plastic barb fitting adapter is suitable for applications in pharmaceutical, food and beverage, laboratory and others 5、DURABLE AND SAFE: Come with smooth surface and inner wall, durable, light and small. Exquisite craftsmanship makes it safe and reliable